# SDR ASAA2022112840971

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 28, 2022
- Submitted: November 30, 2022
- Operation: Air carrier
- Aircraft: [N428AS](https://openairdocs.org/aircraft/N428AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36353
- Aircraft time: 24,589 hours, 7,701 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7220 · Turbine Engine Air Inlet Section](https://openairdocs.org/jasc/7220)
- Part: Insert
- Part number: 6490690210
- Condition: Defective
- Location: Fan Duct
- 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/ASAA2022112840971

## Discrepancy

#2 ENGINE LWR OUTBD FAN DUCT PANEL HAS 1EA BAD INSERT. GROUNDED - YES. REMOVED LWR OUTBD PNL. REF B737-900 AMM 72-23-07 ASA 52800. REMOVED AND REPLACED 1EA BAD INSERT WITH NEW REF CFM SPM 70-42-13 REPAIR 1 ASA 74772. INSTALLED #2 ENG LOWER OUTBOARD FAN DUCT PANEL REF. AMM 72-23-07-400-801.

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