SDR UALA2011120206617

Service difficulty report · Unknown · Boeing 747422

Difficulty date: December 1, 2011
Submitted: December 8, 2011
Operation: Air carrier
Aircraft: N104UA
Make and model: Boeing 747422
Aircraft serial: 26902
Aircraft time: 57,310 hours, 6,723 cycles
Engine: Pwa PW4056
System (JASC): 2120 · Air Distribution System
Part: Unknown
Condition: Odor
Location: Cabin
Stage of operation: CR
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

ACRID ODOR REPORTED IN 1ST CLASS. 3 FLT ATTENDANTS COMPLAINED OF HYPOXIC SYMPTOMS. NO COMPLAINTS FROM PAX. CREW TURNED OFF RECIRCULATION FANS. CONSULTED FIM 2100 TASK 8-10, ENGINES, APU, PACK BAYS CHECKED, NO OIL LEAKS FOUND. CARGO BAY AND GALLEY EQUIPMENTS CHECKED NORMAL. OPERATE INDIVIDUAL ENGINES OR APU WITH ALL RECIRCULATION FANS AND A/C PACKS ON CONFIRMED NO ODOR IN CABIN. FOLLOWED FIM 2100 TASK SUP PROCEDURE 4 RESULT SATISFACTORY.