Service difficulty report · Precooler · Boeing 767322

Difficulty date
June 29, 2011
Submitted
July 22, 2011
Operation
Air carrier
Aircraft
N664UA
Make and model
Boeing 767322
Aircraft serial
29236
Aircraft time
46,052 hours, 12,602 cycles
Engine
Pwa PW4056
Part
Precooler
Part number
7929405
Part serial
62
Condition
Cracked
Location
Bleed Air Sys
Stage of operation
NR
How discovered
9
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

PRECOOLER HAS 2 CRACKS ON FWD, LOWER, INBD CORNER. 1ST CRACK 2.375 LONG. 2ND CRACK 0.750 LONG. REPLACED PRECOOLER PER MM.