Service difficulty report · Heat Shield · Boeing 777222

Difficulty date
December 3, 2011
Submitted
December 8, 2011
Operation
Air carrier
Aircraft
N787UA
Make and model
Boeing 777222
Aircraft serial
26939
Aircraft time
64,536 hours, 9,462 cycles
Engine
Pwa PW40903
Part
Heat Shield
Condition
Damaged
Location
Nr 4 Pylon
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

NR 2 ENGINE, HEAT SHIELD NR 4 AND NR 5 NEED NDT REMAINING THICKNESS AND HFEC FOR CRACKS. ACCOMPLISHED HFEC AS REQUIRED ON AREAS AFTER BLENDING REF NDT MANUAL PART 6 51-00-06. NO CRACKS FOUND. ALSO PERFORMED ULTRASONIC REMAINING THICKNESS REF NDT MANUAL PART 4 51-00-10 PROCEDURE 2. NR 4 HEAT SHIELD REMAINING THICKNESS .39 INCH AND NR 5 REMAINING THICKNESS .048 INCH.