TM 1-1520-238-T-4
4–148
4–58.
EXCESSIVE TORSIONAL VIBRATION AND NR DROOP OCCURS DURING FLIGHT –
4–58
(ENGINE 2 NP LAGS BEHIND ENGINE 1 NP DURING RECOVERY MANEUVER) (cont)
6. Check for open between:
J22–33 and P1121–1,
J22–34 and P1121–2,
J22–35 and P1121–3.
Does open exist?
YES
Repair open wire.
Go to paragraph 4–13.
NO
Replace collective potentiometer
position transducer
(TM 1-1520-238-23).
END OF TASK
