- Difficulty date
- April 14, 2018
- Submitted
- April 18, 2018
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35191
- Aircraft time
- 38,599 hours, 11,647 cycles
- Part
- Diffuser
- Part number
- 22156283
- Condition
- Unserviceable
- Location
- Rt A/C Pack
- 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
RIGHT AFT PRIMARY HEAT EXCHANGER PLENUM UNSERVICEABLE. ACFT GROUNDED. REMOVED RIGHT AFT PRIMARY HEAT EXCHANGER AND PLENUM/DIFFUSER ASSY IAW AMM 21-51-03-000-805-002. INSTALLED A SERVICEABLE PLENUM/DIFUSSER ASSY, AND PRIMARY HEAT EXCHANGER IAW AMM 21-51-03, LEAK CHECKED GOOD.