Service difficulty report · Wire Harness · Boeing 737890
FAA SDR system
- Difficulty date
- April 26, 2016
- Submitted
- April 26, 2016
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35686
- Aircraft time
- 32,556 hours, 9,849 cycles
- Engine
- Cfmint CFM567B27
- Part
- Wire Harness
- Part number
- 3250254010
- Condition
- Failed
- Location
- Nr 2 Engine
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIAGNOSTICS REPORTS, NR 2 ENGINE TREND DATA SHOWS A SHIFT IN TAKEOFF MARGIN INDICATIVE OF EGT INDICATION ERRORS. PRI:1 ETOPS SIGNIFICANT SYS. ACFT GROUNDED. ACCOMPLISHED T49.5 PROBE & EGT SYS INSPECTION REF AMM 77-21-01. ALL RESISTANCE VALUES CHECK NORMAL EXCEPT CJ10 HARNESS, SECTOR S3 INSULATION RESISTANCE CK FAILS. ACCOMPLISHED EGT CLEANING REF AMM 77-21-00-140-801 & 70-70-01-200-801-F00. CKS NORMAL. REPLACED CJ10 HARNESS, ALL OPS NORMAL. REF AMM 73-21-06, 73-21-00.