Service difficulty report · Pneumatic System · Boeing 767323

Difficulty date
May 3, 2024
Submitted
May 8, 2024
Operation
Air carrier
Aircraft
N399CM
Make and model
Boeing 767323
Aircraft serial
25451
Aircraft time
111,677 hours, 19,283 cycles
Part
Pneumatic System
Part number
FAULTED
Condition
Low Pressure
Location
Apu
Stage of operation
NR
How discovered
9
Nature of condition
J
Precautionary procedure
O

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

What was found

APU PNEUMATIC PRESS DROP TO 10 PSI. PERFORMED APU INSPECTION AND FOUND TUBINE BLADES BROKEN. REMOVED AND REPLACED APU IN REF AMM 49-11-01 NO LEAKS ALL NORMAL.