SDR ASAA2023100445438

Service difficulty report · Unknown · Boeing 7379

Difficulty date: October 4, 2023
Submitted: October 9, 2023
Operation: Air carrier
Aircraft: N976AK
Make and model: Boeing 7379
Aircraft serial: 64967
Aircraft time: 5,464 hours, 1,586 cycles
System (JASC): 7240 · Turbine Engine Combustion Section
Part: Unknown
Part number: UNKNOWN
Condition: Unknown
Location: Unknown
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

WHILE ACCOMPLISHING TC 72-220-00 BORESCOPE #1 ENG S/N 603094 COMBUTION CHAMBER. FOUND CIRCUMFERENCIAL CRACKS AND MISSING MATEREAL IN THE DEFLECTOR PLATE NO. 12,13,14 PER TC 72-220-00 STEP C-2 (D-1) CIRCUMFERENTIAL CRACKS NOT PERMITED. GROUNDED - YES. ON DEFERRAL.

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