What was found
CIRS FAULT, EICAS MESSAGE DISPLAYED. AIR TURNBACK, REMOVED AND REPLACED THE CENTER IRU IAW AMM 34-21-01, OPS CHECKED OK. ACCOMPLISHED MCDP TEST 30 IAW AMM 22-00-02, ALL TESTS PASSED. LMP STATUS REMAINS IN LAND 2 STATUS.
- Difficulty date
- May 12, 2018
- Submitted
- May 16, 2018
- Operation
- Air carrier
- Aircraft
- N581HA
- Make and model
- Boeing 76733A
- Aircraft serial
- 28141
- Aircraft time
- 60,521 hours, 11,205 cycles
- System (JASC)
- 3440 · Independent Position Determining System
- Part
- Irs
- Part number
- HG1050AD10
- Part serial
- 382705
- Condition
- Malfunctioned
- Part time
- 88 hours, 23 cycles
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.