- Difficulty date
- November 30, 2018
- Submitted
- December 4, 2018
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35198
- Aircraft time
- 33,721 hours, 10,150 cycles
- Part
- Plenum
- Part number
- 22156322
- Condition
- Delaminated
- Location
- Heat Exchanger
- 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.
What was found
UPON REMOVAL OF R/H PRIMARY HEAT EXCHANGER & PLENUM ASSY FOUND R/H SECONDARY HEAT EXCHANGER PLENUM DELAMINATED ALSO. GROUNDED - YES. REMOVED AND REPLACED R/H SECONDARY HEAT EXCHANGER PLENUM REF B737-800 AMM 21-51-03. COMPLETED OPS AND LEAK CK GOOD.