# SDR CALA2021061400869

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 14, 2021
- Submitted: June 14, 2021
- Operation: Air carrier
- Aircraft: [N73251](https://openairdocs.org/aircraft/N73251), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30582
- Aircraft time: 65,075 hours, 23,418 cycles
- System (JASC): [3421 · Attitude Gyro and Indicating System](https://openairdocs.org/jasc/3421)
- Part: Adiru
- Part number: HG2050AC11
- Condition: Inoperative
- Location: Left
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021061400869

## Discrepancy

IRS-L INOP REMOVED & REPLACED LEFT ADIRU PER AMM 34-21-01-400-801 , OPS CKD PER AMM 34-21-00-710-801, PASSED LAND VERIFY TEST PER AMM 22-11-00-700-801. NO FAULTS OPS CKD NORMAL. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1171588  SN OFF 5038 UNIT, ADIRU, AI  OFF 60-3421-9-0001 5038 ON 60-3421-9-0001 6276

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