Service difficulty report · Controller · Boeing 767322

Difficulty date
May 27, 2012
Submitted
June 23, 2012
Operation
Air carrier
Aircraft
N672UA
Make and model
Boeing 767322
Aircraft serial
30027
Aircraft time
45,353 hours, 11,745 cycles
Engine
Pwa PW4056
Part
Controller
Part number
77328915
Part serial
2382
Condition
Faulty
Location
Bleed Air Sys
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

AFTER A DEFECTIVE RIGHT ENGINE HPC WAS REPLACED. RIGHT ENGINE WAS WITHOUT ANY BLEED PROBLEMS FOR 109 CYCLES. ON THROTTLE BACK WITH BLEED LIGHT FLICKER. NEEDS FURTHER TROUBLESHOOTING HAS LONG HISTORY, COMPLIED WITH MEL 3611R. -INF- :RETURN WIRE W3510-017-18 FROM TERMINAL 2 BACK TO TERMINAL 1 WHEN CLEARING DEFERRED ITEM. REFERENCE MEL CARD 36060, MAINTENANCE STEP B. -RPL- :REF PTT SEQ 3532010, 3532 008, 3532007, 3532006, PNEU HEALTH CHECK. CHECK OK. LEAK CHECK. NO LEAKS, ALL WIRE CONTINUITY CHECKS, NO DEFECTS FOUND. REPLACED RIGHT BLEED ARE CONTROL PC ASSY M860 EGR NORMAL PER JRH.