# SDR UALA2009121803924

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 2009
- Submitted: December 31, 2009
- Operation: Air carrier
- Aircraft: [N643UA](https://openairdocs.org/aircraft/N643UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25093
- Aircraft time: 80,856 hours, 12,975 cycles
- Engine: Pwa PW4060
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Duct
- Part number: 214T611389
- Condition: Blown
- Location: Fwd Cargo
- Stage of operation: DE
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009121803924

## Discrepancy

DESCENT THRU 290 TO 200 F/A REPORTED LOUD RUSHING AIR SOUND AREA OF CLOSET 346 MID-CABIN.  FOUND FWD CARGO HEATING DUCT BLOWN BELOW AIR COND MIX CHAMBER.  FWD CARGO HEATING MADE INOP AND DEACTIVATED.  THIS DUCT IS MISSING 2 FT AND NOT REPAIRABLE. IAD HAS DUCT 214T6113-89 & WILL KEEP AT IAD TO REPAIR DUCT ON RETURN FLT 874-21 OVERNIGHT. REPLACED FWD CARGO HEAT MOST AFT DUCT FROM STA 786 TO 654. REACTIVATED CARGO HEAT VALVE, RAN CARGO HEAT NO LEAKS FOUND. OPS CHECKS NORMAL.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.