# SDR CALA2026052716564

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 25, 2026
- Submitted: May 27, 2026
- Operation: Air carrier
- Aircraft: [N39728](https://openairdocs.org/aircraft/N39728), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28944
- Aircraft time: 81,975 hours, 30,309 cycles
- System (JASC): [3400 · Navigation System](https://openairdocs.org/jasc/3400)
- Part: Adiru
- Part number: HG2050AC07
- Part serial: 6300
- Condition: Faulted
- Location: Right
- Part time: 88,066 hours, 19,528 cycles
- Stage of operation: CL
- 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/CALA2026052716564

## Discrepancy

ON ROTATION R IRS FAULT LIGHT ILLUMINATED. DOES NOT EXTINGUISH COMPLETED ADIRU BITE FIM TASK 34-21 TASK 801, CURRENT STATUS R ADIRU, REPLACED RT ADIRU, OPS CHECK GOOD MM 34-21-00

---
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.