SDR 2008UALA05593

Service difficulty report · Unknown · Boeing 757222

Difficulty date: September 4, 2008
Submitted: September 10, 2008
Operation: Air carrier
Aircraft: N556UA
Make and model: Boeing 757222
Aircraft serial: 26650
Aircraft time: 54,685 hours, 20,063 cycles
Engine: Pwa PW2037
System (JASC): 2120 · Air Distribution System
Part: Unknown
Condition: Smoke
Location: Cabin
Stage of operation: DE
How discovered: O
Nature of condition: B
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

WHILE DESCENDING TO FL 350 AT FL 390 F/A REPORTED SMOKE ALARMS SOUNDED IN LAVS 2L AND FWD-AFT. ALSO A LIGHT HAZE WAS NOTICED IN THE AFT CABIN. NO ODOR OF OIL OR ELECTRICAL BURNING. UPON REACHING FL350 HAZE CLEARED. SMOKE ALARMS WERE RESET AND DID NOT RESOUND. ALL PACK OPERATIONS APPEARED NORMAL.