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A B737-200 was dispatched in non compliance due to #1 engine fuel control replaced with 2 runs for adjustment and 2 test flts and no documentation for the work accomplished.
| Attributes | |
| ACN | 434852 |
| Time | |
| Date | 199904 |
| Day | Fri |
| 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 | B737-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance ground : parked |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 3 |
| ASRS Report | 434852 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation non adherence : published procedure |
| Independent Detector | other other : inspector |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : inspection performance deficiency : non compliance with legal requirements performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
While aircraft xyz was in hangar of air carrier ZZZ maintenance base for its scheduled hmv 7, the engines were removed for routine maintenance and alteration. On apr/xx/99, I accomplished item #4 of job card #BBB, coa wyyz sequence #xbx -- #1 engine installation, safety and security check. I inspected items a through F and found all items, except where noted on north/right number xoox were secure and safetied at that time. The aircraft was released on apr/ak/99. During that 8 day period, the fuel control unit was replaced and rigged on a task oriented document. After that there were at least 2 engine runs to adjust engine parameters, and 2 test flts. The engine cowls were opened and the engine parameters adjustment were accomplished without proper documentation per air carrier procedures (aircraft operating procedure and maintenance operations procedure).
Original NASA ASRS Text
Title: A B737-200 WAS DISPATCHED IN NON COMPLIANCE DUE TO #1 ENG FUEL CTL REPLACED WITH 2 RUNS FOR ADJUSTMENT AND 2 TEST FLTS AND NO DOCUMENTATION FOR THE WORK ACCOMPLISHED.
Narrative: WHILE ACFT XYZ WAS IN HANGAR OF ACR ZZZ MAINT BASE FOR ITS SCHEDULED HMV 7, THE ENGS WERE REMOVED FOR ROUTINE MAINT AND ALTERATION. ON APR/XX/99, I ACCOMPLISHED ITEM #4 OF JOB CARD #BBB, COA WYYZ SEQUENCE #XBX -- #1 ENG INSTALLATION, SAFETY AND SECURITY CHK. I INSPECTED ITEMS A THROUGH F AND FOUND ALL ITEMS, EXCEPT WHERE NOTED ON N/R NUMBER XOOX WERE SECURE AND SAFETIED AT THAT TIME. THE ACFT WAS RELEASED ON APR/AK/99. DURING THAT 8 DAY PERIOD, THE FUEL CTL UNIT WAS REPLACED AND RIGGED ON A TASK ORIENTED DOCUMENT. AFTER THAT THERE WERE AT LEAST 2 ENG RUNS TO ADJUST ENG PARAMETERS, AND 2 TEST FLTS. THE ENG COWLS WERE OPENED AND THE ENG PARAMETERS ADJUSTMENT WERE ACCOMPLISHED WITHOUT PROPER DOCUMENTATION PER ACR PROCS (ACFT OPERATING PROC AND MAINT OPS 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.