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|
Attributes | |
ACN | 572498 |
Time | |
Date | 200301 |
Day | Sun |
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 | B767-200 |
Person 1 | |
Affiliation | company : air carrier |
Function | maintenance : lead technician |
Qualification | technician : airframe technician : powerplant |
ASRS Report | 572498 |
Person 2 | |
Affiliation | company : air carrier |
Function | maintenance : lead technician |
Qualification | technician : powerplant technician : airframe |
ASRS Report | 572499 |
Events | |
Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure |
Independent Detector | other other : person 2 |
Resolutory Action | none taken : detected after the fact |
Consequence | other other |
Factors | |
Maintenance | contributing factor : manuals contributing factor : work cards performance deficiency : installation performance deficiency : logbook entry performance deficiency : non compliance with legal requirements performance deficiency : testing performance deficiency : scheduled maintenance |
Supplementary | |
Problem Areas | Aircraft Chart Or Publication Maintenance Human Performance |
Primary Problem | Maintenance Human Performance |
Narrative:
In returning aircraft, r-hand engine back in service, I consulted with my lead technician as to the necessary tests/checks. Both the starter and hydraulic pump and start valve had been removed in order to test for a high oil consumption condition and to determine the source of oil usage. The tests done were an engine start and idle run and leak check of the components removed as determined during consultation with lead technician. These were noted in the power plant test table in the amm. Another amount had originated a write-up item to perform a 'high power run' due to items #3 and 4. At the initial review of those items, it was noted that the starter, start valve and hydraulic pump and drive seals were removed and reinstalled/replaced. The power plant test table required only an idle run to be performed. This was accomplished, and the aircraft went back in service. The following thursday, in the beginning of the shift, I was informed by my lead technician that he had done a 'personal review' and realized that when a 'high oil consumption' check is accomplished, the horizontal drive shaft is removed to facilitate the tooling used. The amm requires a 'high power run' to be accomplished. We notified technician services to follow up with a high power run on #2 engine on this aircraft. The amount that initiated the write-up referenced back to the other items and was not specific. Also, the information exchanged between lead technician and aircraft maintenance technician was inadequate.
Original NASA ASRS Text
Title: A B767-200 WAS DISPATCHED IN NON COMPLIANCE WITH THE INCORRECT ENG RUN ACCOMPLISHED AFTER GEAR BOX SEALS REPLACED. REQUIRED HIGH PWR RUN.
Narrative: IN RETURNING ACFT, R-HAND ENG BACK IN SVC, I CONSULTED WITH MY LEAD TECHNICIAN AS TO THE NECESSARY TESTS/CHKS. BOTH THE STARTER AND HYD PUMP AND START VALVE HAD BEEN REMOVED IN ORDER TO TEST FOR A HIGH OIL CONSUMPTION CONDITION AND TO DETERMINE THE SOURCE OF OIL USAGE. THE TESTS DONE WERE AN ENG START AND IDLE RUN AND LEAK CHK OF THE COMPONENTS REMOVED AS DETERMINED DURING CONSULTATION WITH LEAD TECHNICIAN. THESE WERE NOTED IN THE PWR PLANT TEST TABLE IN THE AMM. ANOTHER AMOUNT HAD ORIGINATED A WRITE-UP ITEM TO PERFORM A 'HIGH PWR RUN' DUE TO ITEMS #3 AND 4. AT THE INITIAL REVIEW OF THOSE ITEMS, IT WAS NOTED THAT THE STARTER, START VALVE AND HYD PUMP AND DRIVE SEALS WERE REMOVED AND REINSTALLED/REPLACED. THE PWR PLANT TEST TABLE REQUIRED ONLY AN IDLE RUN TO BE PERFORMED. THIS WAS ACCOMPLISHED, AND THE ACFT WENT BACK IN SVC. THE FOLLOWING THURSDAY, IN THE BEGINNING OF THE SHIFT, I WAS INFORMED BY MY LEAD TECHNICIAN THAT HE HAD DONE A 'PERSONAL REVIEW' AND REALIZED THAT WHEN A 'HIGH OIL CONSUMPTION' CHK IS ACCOMPLISHED, THE HORIZ DRIVE SHAFT IS REMOVED TO FACILITATE THE TOOLING USED. THE AMM REQUIRES A 'HIGH PWR RUN' TO BE ACCOMPLISHED. WE NOTIFIED TECHNICIAN SVCS TO FOLLOW UP WITH A HIGH PWR RUN ON #2 ENG ON THIS ACFT. THE AMOUNT THAT INITIATED THE WRITE-UP REFED BACK TO THE OTHER ITEMS AND WAS NOT SPECIFIC. ALSO, THE INFO EXCHANGED BTWN LEAD TECHNICIAN AND ACFT MAINT TECHNICIAN WAS INADEQUATE.
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.