- Difficulty date
- October 7, 2021
- Submitted
- October 11, 2021
- Operation
- Air carrier
- Make and model
- Boeing 7673Y0
- Aircraft serial
- 26207
- Part
- Valve
- Part number
- 7998013
- Part serial
- 900324
- Condition
- None
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K, O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF RIGHT DUCT PRESS FLUCUATED RAPIDLY AND CONTINUOUSLY BETWEEN 20-40 PSI.(<P>ITEM TRANSFERRED TO MDDR 154728 IAW MEL 36-11-00-02.</P> / <P>09OCT21 - LP 784412 - ITEM# 3 - ATL - REACTIVATED HPSOV PER AMM TASK 36-00-00-440-801. C/W EO 1936A079. REMOVED AND REPLACED RH ENG PRSOV IAW AMM 36-11-09/401. LEAK CHECK GOOD. THIS CLEARS DMI 154728.</P>)