In the fast-paced and intricately detailed world of aviation maintenance, the Maintenance Error Decision Aid (MEDA) Results Form stands as a critical tool designed to enhance the understanding and management of maintenance errors. This comprehensive document, updated recently on January 23, 2001, encapsulates a wide range of information starting with basic details related to the airline, interviewer, and the aircraft involved, moving through the nuanced analysis of the event in question, the specific maintenance errors identified, contributing factors, and eventually, error prevention strategies. Section I lays the groundwork by collecting general information, while Sections II and III dive into the heart of the form, detailing the event and the maintenance errors that led to it. The subsequent sections provide an exhaustive checklist of contributing factors ranging from information, equipment, individual factors, environmental conditions, organizational and leadership factors, to communication issues, offering a holistic view of the circumstances that lead to maintenance errors. Finally, the form closes with a discussion on current procedures that failed to prevent the incident and recommendations for future strategies to mitigate such errors, ensuring that every aspect of maintenance error analysis is covered with the intention of fostering safer aviation practices.
| Question | Answer |
|---|---|
| Form Name | Meda Results Form |
| Form Length | 4 pages |
| Fillable? | No |
| Fillable fields | 0 |
| Avg. time to fill out | 1 min |
| Other names | meda boeing pdf, boeing meda, meda form, meda boeing download |
Maintenance Error Decision Aid (MEDA) Results Form
Section I
Reference #: ___ ___ ___ ___ ___ |
Interviewer’s Name:_____________________________ |
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Airline: ______________________________________ |
Interviewer’s Telephone #: __ __ __ __ __ __ __ __ __ |
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Station of Error: _______________________________ |
Date of Investigation: __ __ / __ __ / __ __ |
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Aircraft Type: _________________________________ |
Date of Event: __ __ / __ __ / __ __ |
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Engine Type: _________________________________ |
Time of Event: _ _ : _ _ am |
pm |
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Reg. #: ___ ___ ___ ___ ___ ___ ___ |
Shift of Error: _________________________________ |
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Fleet Number: ___ ___ ___ ___ ___ ___ |
Type of Maintenance (Circle): |
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ATA #: ___ ___ ___ ___ |
1. Line |
_____________________ |
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Aircraft Zone: _________________________________ |
2. Base |
____________________ |
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Ref. # of previous related event: ___ ___ ___ ___ ___ |
Date Changes Implemented: |
__ __ / __ __ / __ __ |
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Section II
Please select the event (check all that apply)
1. Operations Process Event |
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f. Diversion |
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a. Flight Delay (write in length) _ days _ _ hrs. _ _ min. |
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g. Other (explain below) |
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b. |
Flight Cancellation |
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2. |
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Aircraft Damage Event |
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c. |
Gate Return |
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3. |
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Personal Injury Event |
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d. |
( ) |
4. |
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Rework |
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e. |
Air |
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5. |
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Other Event (explain below) |
Describe the incident/degradation/failure (e.g., could not pressurize) that caused the event.
Section III
Please select the maintenance error(s) that caused the event:
1. |
Installation Error |
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) 3. |
Repair Error (e.g., component or) |
6. |
Airplane/Equipment Damage Error |
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) a. Equipment/part not installed |
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structural repair) |
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) a. Tools/equipment used improperly |
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) b. Wrong equipment/part installed |
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) b. Defective tools/equipment used |
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) c. Wrong orientation |
4. |
Fault Isolation/Test/Inspection Error |
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) c. |
Struck by/against |
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) d. Improper location |
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) a. |
Did not detect fault |
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) d. |
Pulled/pushed/drove into |
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) e. Incomplete installation |
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) b. |
Not found by fault isolation |
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) e. |
Other (explain below) |
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) f. Extra parts installed |
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) c. Not found by operational/ |
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) g. Access not closed |
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functional test |
7. |
Personal Injury Error |
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) h. System/equipment not |
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) d. |
Not found by inspection |
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) a. |
Slip/trip/fall |
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reactivated/deactivated |
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) e. |
Access not closed |
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) b. |
Caught in/on/between |
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) i. Damaged on installation |
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) f. |
System/equipment not |
( |
) c. |
Struck by/against |
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) j. Cross connection |
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deactivated/reactivated |
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) d. Hazard contacted (e.g., electricity, hot |
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) k. Other (explain below) |
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) g. Other (explain below) |
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or cold surfaces, and sharp surfaces) |
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) e. Hazardous substance exposure (e.g., |
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2. |
Servicing Error |
5. Foreign Object Damage Error |
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toxic or noxious substances) |
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) a. Not enough fluid |
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) a. Material left in aircraft/engine |
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) f. |
Hazardous thermal environment |
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) b. Too much fluid |
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) b. Debris on ramp |
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exposure (heat, cold, or humidity) |
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) c. Wrong fluid type |
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) c. Debris falling into open systems |
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) g. Other (explain below) |
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) d. Required servicing not performed |
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) d. Other (explain below) |
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) e. Access not closed |
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) 8. |
Other (explain below) |
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) f. System/equipment not |
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deactivated/reactivated |
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) g. Other (explain below) |
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Describe the specific maintenance error (e.g., auto pressure controller installed in wrong location).
MEDA Results Form Revision g |
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Section IV
N/A __
N/A __
N/A __
A. Information (e.g., work cards, maintenance manuals, service bulletins, maintenance tips,
__ |
1. |
Not understandable |
__ |
5. |
Update process is too long/complicated |
__ |
2. |
Unavailable/inaccessible |
__ |
6. |
Incorrectly modified manufacturer's MM/SB |
__ |
3. |
Incorrect |
__ |
7. |
Information not used |
__ |
4. |
Too much/conflicting information |
__ |
8. |
Other (explain below) |
Describe specifically how the selected information factor(s) contributed to the error.
B. Equipment/Tools/Safety Equipment
__ |
1. |
Unsafe |
__ |
6. |
Inappropriate for the task |
__ |
11.Not used |
__ |
2. |
Unreliable |
__ |
7. |
Cannot use in intended environment |
__ |
12.Incorrectly used |
__ |
3. |
Layout of controls or displays |
__ |
8. |
No instructions |
__ |
13.Other (explain below) |
__ |
4. |
__ |
9. |
Too complicated |
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5. |
Unavailable |
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10.Incorrectly labeled |
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Describe specifically how selected equipment/tools/safety equipment factor(s) contributed to the error.
C. Aircraft Design/Configuration/Parts
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1. |
Complex |
__ |
4. |
Parts unavailable |
__ |
6. |
Easy to install incorrectly |
__ |
2. |
Inaccessible |
__ |
5. |
Parts incorrectly labeled |
__ |
7. |
Other (explain below) |
__ |
3. |
Aircraft configuration variability |
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Describe specifically how the selected aircraft design/configuration/parts factor(s) contributed to error.
N/A __ D. Job/Task
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1. |
Repetitive/monotonous |
__ |
3. |
New task or task change |
__ 5. Other (explain below) |
__ |
2. |
Complex/confusing |
__ |
4. |
Different from other similar tasks |
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Describe specifically how the selected job/task factor(s) contributed to the error.
N/A __ E. Technical Knowledge/Skills
__ |
1. |
Skills |
__ |
3. |
Task planning |
__ |
5. |
Aircraft system knowledge |
__ |
2. |
Task knowledge |
__ |
4. |
Airline process knowledge |
__ |
6. |
Other (explain below) |
Describe specifically how the selected technical knowledge/skills factor(s) contributed to the error.
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N/A __
N/A __
N/A __
N/A __
N/A __
N/A __
F. Individual Factors
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1. |
Physical health (including |
__ |
5. |
Complacency |
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9. Memory lapse (forgot) |
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hearing and sight) |
__ |
6. |
Body size/strength |
__ |
10.Other (explain below) |
__ |
2. |
Fatigue |
__ |
7. |
Personal event (e.g., family problem, car accident) |
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__ |
3. |
Time constraints |
__ |
8. |
Workplace distractions/interruptions |
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__ |
4. |
Peer pressure |
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during task performance |
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Describe specifically how the selected factors affecting individual performance contributed to the error.
G. Environment/Facilities
__ |
1. |
High noise levels |
__ |
5. |
Rain |
__ |
9. Vibrations |
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13. |
Inadequate ventilation |
__ |
2. |
Hot |
__ |
6. |
Snow |
__ |
10.Cleanliness |
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14. |
Other (explain below) |
__ |
3. |
Cold |
__ |
7. |
Lighting |
__ |
11.Hazardous/toxic substances |
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4. |
Humidity |
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8. |
Wind |
__ |
12.Power sources |
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Describe specifically how the selected environment/facilities factor(s) contributed to the error.
H. Organizational Factors
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1. |
Quality of support from technical organizations |
__ |
6. |
Work process/procedure |
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(e.g., engineering, planning, technical pubs) |
__ |
7. |
Work process/procedure not followed |
__ |
2. |
Company policies |
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8. |
Work process/procedure not documented |
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3. |
Not enough staff |
__ |
9. |
Work group normal practice (norm) |
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4. |
Corporate change/restructuring |
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10. |
Other (explain below) |
__ |
5. |
Union action |
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Describe specifically how the selected organizational factor(s) contributed to the error.
I.Leadership/Supervision
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1. |
Planning/organization of tasks |
__ |
3. |
Delegation/assignment of task |
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5. |
Amount of supervision |
__ |
2. |
Prioritization of work |
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4. |
Unrealistic attitude/expectations |
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6. |
Other (explain below) |
Describe specifically how the selected leadership/supervision factor(s) contributed to the error.
J. Communication
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1. |
Between departments |
__ |
4. |
Between maintenance crew and lead __ 7. Other (explain below) |
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2. |
Between mechanics |
__ |
5. |
Between lead and management |
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3. |
Between shifts |
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6. |
Between flight crew and maintenance |
Describe specifically how the selected communication factor(s) contributed to the error.
K. Other Contributing Factors (explain below)
Describe specifically how this other factor contributed to the error.
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Section V – Error Prevention Strategies
A.What current existing procedures, processes, and/or policies in your organization are intended to prevent the incident, but didn't?
() Maintenance Policies or Processes (specify) ___________________________________________________
() Inspection or Functional Check (specify) ______________________________________________________
Required Maintenance Documentation
() Maintenance manuals (specify) __________________________________________________________
() Logbooks (specify) ____________________________________________________________________
() Work cards (specify) ___________________________________________________________________
() Engineering documents (specify) _________________________________________________________
() Other (specify) _______________________________________________________________________
Supporting Documentation
() Service Bulletins (specify)_______________________________________________________________
() Training materials (specify)______________________________________________________________
()
()
() Other (specify) _______________________________________________________________________
( ) Other (specify) ____________________________________________________________________________
B. List recommendations for error prevention strategies.
Recommen- Contributing |
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dation # |
Factor # |
(Use additional pages, as necessary)
Section VI – Summary of Contributing Factors, Error, and Event
Provide a brief summary of the event.
(Use additional pages, as necessary)
MEDA Results Form Revision g |
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