Service difficulty report · Duct · Boeing 767281

Difficulty date
September 16, 2009
Submitted
September 24, 2009
Operation
Air carrier
Aircraft
N775AX
Make and model
Boeing 767281
Aircraft serial
22790
Aircraft time
52,179 hours, 39,052 cycles
Part
Duct
Condition
Leaking
Location
Bleed Air Sys
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

09/16/09 - 26-11-02-01 L ENG FIRE LP2 - TROUBLESHOT, NO FAULTS FOUND - RESISTANCE GOOD FOR ALL LOOP 2 DETECTORS. FWD LWR LOOP CHAFING, REPOSITIONED LOOP. 09/17/09 - 26 11 02 01 L ENG FIRE LP2 - DEFERRED. T/S SWAPPED FIRE DETECT CIRCUIT CARD. 09/18/09 WORKING DI T/S STATUS MSG FIRE LOOP EICAS INTERMITTENT. 09/19/09 - CREW REPORTS EICAS MESSAGE OF L ENG FIRE LP1 OR L ENG FIRE LP2. EICAS MSG L ENG LP2 MSG CAME ON AT T/O, STEADY AT CRUISE, MSG WENT OUT AT TOP OF DESCENT. NOTED BY MAINT. 09/22/09 - DI IN WORK LT ENG FIRE LOOP 2. CLR INSP ENGINE PNEUMATIC DUCTS FOUND DUCT LEAK AT FLEXIBLE BALL JOINT FOR 8TH STAGE AIR GOING TO PRECOOLER. REPOSITIONED PNEUMATIC DUCTS IAW B767 AMM 36-11-01-4. LEAK CHECK GOOD.