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A B737-300 was dispatched in non compliance with #2 radio altimeter deferred per the MEL but circuit breaker not pulled and capped.
| Attributes | |
| ACN | 561014 |
| Time | |
| Date | 200209 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance avionics : 34 maintenance technician : 34 |
| ASRS Report | 561014 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : manuals performance deficiency : non compliance with legal requirements performance deficiency : inspection performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Chart Or Publication Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
| Situations | |
| Publication | MEL |
Narrative:
#2 radio altimeter had chronic problems. After releasing the system per MEL, I placarded the #2 (B) autoplt and the #2 flight director as 'inoperative' per the special procedure. However, I did not pull and collar the circuit breaker for the #2 radio altimeter as per the special procedure.
Original NASA ASRS Text
Title: A B737-300 WAS DISPATCHED IN NON COMPLIANCE WITH #2 RADIO ALTIMETER DEFERRED PER THE MEL BUT CIRCUIT BREAKER NOT PULLED AND CAPPED.
Narrative: #2 RADIO ALTIMETER HAD CHRONIC PROBS. AFTER RELEASING THE SYS PER MEL, I PLACARDED THE #2 (B) AUTOPLT AND THE #2 FLT DIRECTOR AS 'INOP' PER THE SPECIAL PROC. HOWEVER, I DID NOT PULL AND COLLAR THE CIRCUIT BREAKER FOR THE #2 RADIO ALTIMETER AS PER THE SPECIAL PROC.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.