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SDR ABXA010359

Open the Markdown

Service difficulty report · Isolation Valve · Boeing 767281

FAA SDR system

Difficulty date
June 26, 2001
Submitted
June 29, 2001
Operation
Air carrier
Aircraft
N787AX
Make and model
Boeing 767281
Aircraft serial
23020
Aircraft time
37,763 hours, 34,073 cycles
System (JASC)
3610 · Pneumatic Distribution System
Part
Isolation Valve
Condition
Malfunctioned
Location
Bleed Air
Stage of operation
CL
How discovered
O
Nature of condition
B
Precautionary procedure
K

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

What was found

DURING CLIMBOUT OF KDAL, THERE WAS A BAD OIL ODOR. DISSIPATED AT HIGH ALTITUDE AND WHEN RIGHT PACK WAS TURNED OFF. PASSING 13,000 FEET, ODOR RETURNED. CREW DONNED OXYGEN MASKS DUE TO ODOR. CHECKED NR 1 AND NR 2 INLETS AND EXHAUST, NR 1 AND NR 2 ENGINE 8TH AND 14TH STAGE OUTLET DUCTS. REPLACED RIGHT ISOLATION VALVE. CHECKED LEFT AND RIGHT ACM TURBINE OUTLET DUCTS. NO DEFECTS NOTED ON NR 1 OR NR 2 ENGINES. COMPLIED WITH ENGINE RUN, NR 1 AND NR 2 AT VARIOUS POWERS AND PNEUMATIC SETTINGS WITH NO ABNORMAL ODORS NOTED IAW B767 MM 71-00.