# SDR 98UAL900606

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N603UA
- Make and model: Boeing 767222
- Aircraft serial: 21864
- Engine: Pwa JT9D7R4D
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Valve
- Condition: Failed
- Location: Ram Air Gate
- Stage of operation: CR
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98UAL900606

## Discrepancy

CREW REPORTS VIBRATION AND NOISES FROM AIRFRAME. DIVERTED TO LAS.  EMERGENCY DECLARED, OVERWEIGHT LANDING.  *S/D*  INSPECTION CHECK FOUND FLAPPER BROKEN.  REMOVED BROKEN FLAPPER FROM AIR DUCT AND INSTALLED NEW VALVES.

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