What was found
NR 4 ENGINE DURING SPOOL UP, N1 RPM INDICATOR HANGS UP BETWEEN 50 TO 70 PERCENT. REMOVED AND REPLACED NR 4 N1 INDICATOR IAW DC-8 MM CH 77-00. OPS CHECKS GOOD ON ENGINE RUN-UP.
- Difficulty date
- April 8, 2001
- Submitted
- April 12, 2001
- Operation
- Air carrier
- Aircraft
- N605AL
- Make and model
- Doug DC873F
- Aircraft serial
- 46106
- Aircraft time
- 90,512 hours, 22,621 cycles
- System (JASC)
- 7714 · Engine RPM Indicating System
- Part
- Indicator
- Part number
- 8DJ324WAC1
- Part serial
- W0091A
- Condition
- Faulty
- Location
- Cockpit
- Stage of operation
- TO
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- C
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.