# SDR CALA2026102220515

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 20, 2026
- Submitted: October 22, 2026
- Operation: Air carrier
- Aircraft: [N69813](https://openairdocs.org/aircraft/N69813), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 43531
- Aircraft time: 38,978 hours, 14,444 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [3425 · Integrated Flight System](https://openairdocs.org/jasc/3425)
- Part: Adiru
- Part number: HG2050AC07
- Part serial: 56068817
- Condition: Faulted
- Location: Zone 100
- Part time: 38,974 hours, 14,442 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026102220515

## Discrepancy

IRS FAULT STARTED WITH IRS MOTION.  REMOVED AND REPLACED AIR DATA IRU ASSY IAW AMM 34-21-01/401. OPS TESTED GOOD IAW AMM 34-21-00-710-80.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.