# SDR ASAA2020033132580

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2020
- Submitted: March 31, 2020
- Operation: Air carrier
- Aircraft: [N423AS](https://openairdocs.org/aircraft/N423AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 35206
- Aircraft time: 27,467 hours, 8,812 cycles
- System (JASC): [3020 · Air Intake Anti/De-Ice System](https://openairdocs.org/jasc/3020)
- Part: Turnbuckle
- Part number: MS21251B5S
- Condition: Worn
- Location: Nr 2 Engine
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020033132580

## Discrepancy

REF T/C 78472000 #2 ENG INLET AND FAN BLADE- DETAILED INSP. FOUND BOTH TAI VALVE FWD MOUNT TURNBUCKLES UPPER ROD ENDS BEARINGS WORN OUT. (M) ON FWD TAI VALVE DUCT. GROUNDED - YES. REPLACED #2 ENG TAI VALVE TURNBUCKLES REF B737-900 AMM 30-21-11.

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