# SDR ASAA2023072244197

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 2023
- Submitted: July 25, 2023
- Operation: Air carrier
- Aircraft: [N581AS](https://openairdocs.org/aircraft/N581AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35188
- Aircraft time: 56,622 hours, 16,867 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Arm
- Part number: 213A31609
- Condition: Corroded
- Location: Lh Ram Air Inlet
- 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/ASAA2023072244197

## Discrepancy

DURING WALK AROUND FOUND IN L/H RAM AIR INLET BOTH LINKS THAT GO FROM TORQUE TUBE TO BLOCKER DOOR TO HAVE CORROSION. GROUNDED - YES. INTIATED MIG 2C 40-0054719,40-0054720 & 40-0054721. REMOVED LH RAM AIR DOOR SHAFT ASSY REF AMM 21-51-22-000-802 PG 43305 07/22/2023. REPLACED LH RAM AIR INLET DEFLECTOR DOOR SHAFT ASSY UP THROUGH STEPS AMM 21-51-22-400-802 5.(E)2. PG 43305 07-22-2023 COMPLETED LH RAM AIR INLET DEFLECTOR SHAFT INSTALL REF MM 21-51-22-400-802. ADJUSTMENT TEST GOOD. MIG 2C # 40-0054719-40-0054721 CLOSED.

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