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B737-900 pilot reports a loud squeal inflight; no pressurization problems noted. Contract aircraft maintenance technicians (amts); found four pressurized access panels in the nose landing gear compartment with 17 bolts missing and others working loose.
| Attributes | |
| ACN | 1147347 |
| Time | |
| Date | 201402 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZZ.Airport |
| State Reference | FO |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-900 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Fuselage Bulkhead |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 160 Flight Crew Total 18000 Flight Crew Type 10000 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Maintenance Deviation - Procedural FAR Deviation - Procedural Published Material / Policy |
Narrative:
Thought the loud squeal during flight was a bad window seal. Upon maintenance inspection; they found a total of 17 bolts missing between the four inspection panels in nose gear compartment. The remainder of the bolts you could loosen with your fingers. The differential pressure with the loose plates was making the noise. Safety concern.
Original NASA ASRS Text
Title: B737-900 pilot reports a loud squeal inflight; no pressurization problems noted. Contract Aircraft Maintenance Technicians (AMTs); found four pressurized access panels in the nose landing gear compartment with 17 bolts missing and others working loose.
Narrative: Thought the loud squeal during flight was a bad window seal. Upon Maintenance Inspection; they found a total of 17 bolts missing between the four inspection panels in nose gear compartment. The remainder of the bolts you could loosen with your fingers. The differential pressure with the loose plates was making the noise. Safety concern.
Data retrieved from NASA's ASRS site 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.