What was found
FLT NR 589 MACH AIRSPEED WARNING ACTIVATED AT 70 KNT. PUMPED UP MACH AIRSPEED SYSTEM PER MM 34-14-00, SYSTEM OP'S CK NORMAL. NO DEFECTS NOTED AND 34-11-00 PITOT TEST. AIRCRAFT WAS GROUNDED.
- Difficulty date
- May 24, 2008
- Submitted
- May 27, 2008
- Operation
- Air carrier
- Aircraft
- N784DH
- Make and model
- Boeing 727227
- Aircraft serial
- 22001
- Aircraft time
- 62,143 hours, 34,915 cycles
- System (JASC)
- 3414 · Airspeed/Mach Indicator
- Part
- Warning System
- Condition
- Malfunctioned
- Location
- Cockpit
- Stage of operation
- TO
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- C
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.