- Difficulty date
- October 28, 2018
- Submitted
- October 29, 2018
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35187
- Aircraft time
- 44,619 hours, 13,285 cycles
- Part
- Plenum
- Part number
- 22156322
- Condition
- Failed
- Location
- Ac Bay
- 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
RT SECONDARY HEAT EXCHANGER PLENUM FAILED DURING HEAT EXCHANGER WASH T/C 78121000. GROUNDED - YES. REMOVED SECONDARY HEAT EXCHANGER ASSEMBLY AND REPLACED PLENUM REF AMM 21-51-03. INSTALLED RT PRIMARY & SECONDARY HEAT EXCHANGERS & PLENUM DIFFUSERS REF AMM 21-51-03-400-804-002.