# SDR IPXA2023041392870

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2023
- Submitted: April 14, 2023
- Operation: Air carrier
- Aircraft: [N413UP](https://openairdocs.org/aircraft/N413UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 23853
- Aircraft time: 36,292 hours, 24,620 cycles
- System (JASC): [3411 · Pitot/Static System](https://openairdocs.org/jasc/3411)
- Part: Unknown
- Part number: NA
- Part serial: NA
- Condition: Inoperative
- Location: Fuselage
- Stage of operation: CR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2023041392870

## Discrepancy

INSPECTION TYPE:NA*EMERGENCY DECLARED* AIRSPEED UNRELIABLE ON CAPT SIDE AT FLT LVL 250. CHECKLIST RESTORED CAPT INSTS BY USE OF "AIR DATA" SWITCHMCDP FAULT 210401 ADC SYST L FOUND. R&R LH AIR DATA COMPUTER IN REF TO AMM 34-12-01. BITE CHECK GOOD AT THIS TIME. IPC 34-12-01-01

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