What was found
AIR TURNBACK, FLUTTERING SOUND IN COCKPIT DURING CLIMBOUT. PACKS TURNED OFF AIRSPEED BELOW 200 KTS AND ENG POWER ADJ. STILL FLUTTERING. REMOVED AND REPLACED EQUIPMENT COOLING VALVE AND C/W AIRFRAME VIBRATION CONDITIONAL INSPECTION.
- Difficulty date
- October 12, 2000
- Submitted
- November 2, 2000
- Operation
- Air carrier
- Aircraft
- N509SW
- Make and model
- Boeing 7375H4
- Aircraft serial
- 24186
- Aircraft time
- 32,765 hours, 3,298 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Valve
- Part number
- 56697
- Condition
- Vibrates
- Location
- Fwd Fuselage
- 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.