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A B737-700 was dispatched in non compliance with #1 reverser rendered inoperative per the MEL. Technician pulled and collared #1 and #2 breakers.
| Attributes | |
| ACN | 605401 |
| Time | |
| Date | 200401 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | landing : roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 605401 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : non compliance with mel non adherence : published procedure non adherence : far |
| Independent Detector | aircraft equipment other aircraft equipment : reverser operating light other flight crewa other flight crewb |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : manuals contributing factor : schedule pressure performance deficiency : fault isolation performance deficiency : logbook entry performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
We landed in ZZZ and the #2 thrust reverser would not deploy. The #1 thrust reverser was on MEL. Maintenance in ZZZ1 had accomplished the procedure for MEL 78-1D. As he was leaving the cockpit I remarked on the circuit breakers pulled for #2 as well as #1, and he said it was in accordance with the MEL. I took his word thinking the sync lock on #2 must have needed to be out as well as on #1. The #1 thrust reverser handle was wired down as usual and looked right. I don't know what maintenance in ZZZ found when they looked over our write-up for the #2 not working, but I suspect incorrect procedures by ZZZ1. This was not a big deal for a long, dry runway landing in ZZZ, but could have been a problem somewhere else.
Original NASA ASRS Text
Title: A B737-700 WAS DISPATCHED IN NON COMPLIANCE WITH #1 REVERSER RENDERED INOP PER THE MEL. TECHNICIAN PULLED AND COLLARED #1 AND #2 BREAKERS.
Narrative: WE LANDED IN ZZZ AND THE #2 THRUST REVERSER WOULD NOT DEPLOY. THE #1 THRUST REVERSER WAS ON MEL. MAINT IN ZZZ1 HAD ACCOMPLISHED THE PROC FOR MEL 78-1D. AS HE WAS LEAVING THE COCKPIT I REMARKED ON THE CIRCUIT BREAKERS PULLED FOR #2 AS WELL AS #1, AND HE SAID IT WAS IN ACCORDANCE WITH THE MEL. I TOOK HIS WORD THINKING THE SYNC LOCK ON #2 MUST HAVE NEEDED TO BE OUT AS WELL AS ON #1. THE #1 THRUST REVERSER HANDLE WAS WIRED DOWN AS USUAL AND LOOKED RIGHT. I DON'T KNOW WHAT MAINT IN ZZZ FOUND WHEN THEY LOOKED OVER OUR WRITE-UP FOR THE #2 NOT WORKING, BUT I SUSPECT INCORRECT PROCS BY ZZZ1. THIS WAS NOT A BIG DEAL FOR A LONG, DRY RWY LNDG IN ZZZ, BUT COULD HAVE BEEN A PROB SOMEWHERE ELSE.
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.