What was found
DURING CRUISE ALTITUDE 35.0, THE AIRCRAFT STARTED LOSING PRESSURIZATION AND THE CABIN ALTITUDE CLIMBED TO 11.5 K FEET. THE PILOT DECLARED AN EMERGENCY AND DECENDED TO 10K FEET, LANDED WITHOUT INCIDENT. FOUND A DUCT CLAMP LOOSE.
- Difficulty date
- May 20, 2018
- Submitted
- May 22, 2018
- Operation
- Air carrier
- Aircraft
- N783TW
- Make and model
- Doug DC915F
- Aircraft serial
- 45826
- Aircraft time
- 50,619 hours, 58,495 cycles
- Engine
- Pwa JT8D7B
- Engine time
- 47,089 hours, 47,238 cycles
- System (JASC)
- 2120 · Air Distribution System
- Part
- Clamp
- Part number
- 41029005
- Condition
- Loose
- Location
- Duct
- Part time
- 50,618 hours, 58,495 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- B, A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.