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A B737-300 returned to the field due to the right engine throttle stuck. Prior to departure, right engine was replaced. FOD found in throttle box.
| Attributes | |
| ACN | 593815 |
| Time | |
| Date | 200309 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial climbout : intermediate altitude ground : maintenance ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| ASRS Report | 593815 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 593709 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Independent Detector | aircraft equipment other aircraft equipment : engine indications other flight crewa other flight crewb |
| Resolutory Action | flight crew : diverted to another airport |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : lighting contributing factor : schedule pressure contributing factor : work cards performance deficiency : logbook entry performance deficiency : inspection performance deficiency : installation |
| Supplementary | |
| Problem Areas | Chart Or Publication Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
On jul/thu-fri/03, aircraft X was scheduled for an engine change. I was the inspector assigned to the engine change. No problems arose during the change, everything was done per standards. The throttle box was inspected per the form -- no FOD was seen at that time. On sep/mon/03, #2 throttle stuck in-flight and aircraft returned to ZZZ. ZZZ found a washer and piece of safety wire in throttle box. Neither of these items were in that throttle box when it was installed on jul/thu-fri/03.
Original NASA ASRS Text
Title: A B737-300 RETURNED TO THE FIELD DUE TO THE R ENG THROTTLE STUCK. PRIOR TO DEP, R ENG WAS REPLACED. FOD FOUND IN THROTTLE BOX.
Narrative: ON JUL/THU-FRI/03, ACFT X WAS SCHEDULED FOR AN ENG CHANGE. I WAS THE INSPECTOR ASSIGNED TO THE ENG CHANGE. NO PROBS AROSE DURING THE CHANGE, EVERYTHING WAS DONE PER STANDARDS. THE THROTTLE BOX WAS INSPECTED PER THE FORM -- NO FOD WAS SEEN AT THAT TIME. ON SEP/MON/03, #2 THROTTLE STUCK INFLT AND ACFT RETURNED TO ZZZ. ZZZ FOUND A WASHER AND PIECE OF SAFETY WIRE IN THROTTLE BOX. NEITHER OF THESE ITEMS WERE IN THAT THROTTLE BOX WHEN IT WAS INSTALLED ON JUL/THU-FRI/03.
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.