Service difficulty report · Acoustic Liner · Boeing 767322

Difficulty date
June 12, 2009
Submitted
June 15, 2009
Operation
Air carrier
Aircraft
N653UA
Make and model
Boeing 767322
Aircraft serial
25391
Aircraft time
71,865 hours, 11,739 cycles
Engine
Pwa PW4060
Part
Acoustic Liner
Condition
Cracked
Location
Nr 1 Engine
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 1 ENGINE ACOUSTIC LINER HAS A 1.25 INCH CRACK LOCATED 0.25 INCH FWD OF THE FAN RUBSTRIP AT THE 10 O'CLOCK POSITION. THE DAMAGED CRACKED AREA IS ALSO DENTED FROM CRACK AFT TO RUBSTRIP JOINT. CRACK MUST BE CHECKED PRIOR TO EACH DEPARTURE AND INLET COWL MUST BE REPAIRED OR REPLACED WITHIN 5 CYCLES. REPLACED NR 1 ENGINE NOSE COWL.