What was found
NUMBER 1 ENG BORE COOLING TUBE ON LT SIDE OF FAN CASE LOCATED BELOW BORED COOLANT VLV HAS DAMAGE. R & R NR 1 ENG BORE COOLING TUBE AMM 75-21-01 & 70-50-00. BORE COOLING VLV TEST ACCOMPLISHED ON RUN UP TASK CARD 8007.
- Difficulty date
- October 31, 2014
- Submitted
- November 3, 2014
- Operation
- Air carrier
- Aircraft
- N640GT
- Make and model
- Boeing 7673S1
- Aircraft serial
- 25221
- Aircraft time
- 75,464 hours, 15,908 cycles
- System (JASC)
- 7520 · Engine Cooling System
- Part
- Cooling Duct
- Part number
- 1456M71G01
- Condition
- Damaged
- Location
- Nr 1 Engine
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.