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An MD83 on a high power engine run incurred structural damage to the left aft lower fuselage from a leaking bleed augmentation valve.
| Attributes | |
| ACN | 591622 |
| Time | |
| Date | 200308 |
| Day | Tue |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-83 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| ASRS Report | 591622 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 591616 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure contributing factor : work cards performance deficiency : inspection performance deficiency : logbook entry performance deficiency : non compliance with legal requirements performance deficiency : testing |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
An air leak at the l-hand augmentation valve did structural damage to the l-hand lower fuselage. Supplemental information from acn 591616: I sat right seat. First indication of a problem started when the agent #2 low light illuminated. With no fire warnings coupled with the event, there were no immediate alarms or concern. I proceeded to the aft galley to investigate where I found the 'LF' augment valve leaking. It was lacking a tail overheat indication.
Original NASA ASRS Text
Title: AN MD83 ON A HIGH PWR ENG RUN INCURRED STRUCTURAL DAMAGE TO THE L AFT LOWER FUSELAGE FROM A LEAKING BLEED AUGMENTATION VALVE.
Narrative: AN AIR LEAK AT THE L-HAND AUGMENTATION VALVE DID STRUCTURAL DAMAGE TO THE L-HAND LOWER FUSELAGE. SUPPLEMENTAL INFO FROM ACN 591616: I SAT R SEAT. FIRST INDICATION OF A PROB STARTED WHEN THE AGENT #2 LOW LIGHT ILLUMINATED. WITH NO FIRE WARNINGS COUPLED WITH THE EVENT, THERE WERE NO IMMEDIATE ALARMS OR CONCERN. I PROCEEDED TO THE AFT GALLEY TO INVESTIGATE WHERE I FOUND THE 'LF' AUGMENT VALVE LEAKING. IT WAS LACKING A TAIL OVERHEAT INDICATION.
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.