# SDR ASAA2023100445438

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 4, 2023
- Submitted: October 9, 2023
- Operation: Air carrier
- Aircraft: [N976AK](https://openairdocs.org/aircraft/N976AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 64967
- Aircraft time: 5,464 hours, 1,586 cycles
- System (JASC): [7240 · Turbine Engine Combustion Section](https://openairdocs.org/jasc/7240)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023100445438

## Discrepancy

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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