The improper securing of the exhaust duct bolts, which resulted in the duct becoming unseated and substantial heat damage to the tail rotor drive shaft.
These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.
Airframe (S-76D)Certain serial numbers: …–761075. Only with: Main rotor servo pushrod assembly P/N 76400-00034-059, 76400-00014-074, 76400-00014-076, or 76400-00014-077 installed.
DURING AIRCRAFT RUN-UP, NR 2 AUTOPILOT WOULD NOT COMPLETE BIT TEST DURING AP TEST. UNABLE TO CLEAR OR RESET.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Landing gear · wire harness · brokenMay 30, 2017
LEFT MLG DOWN INDICATION INTERMITTENT. LEG HAS BROKEN WIRES IN HARNESS.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Landing gear · harness · brokenMay 18, 2017
LEFT MLG DOWN INDICATION INTERMITTENT. FOUND WIRE HARNESS BROKEN.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Landing gear · wire harness · brokenMay 9, 2017
DURING LANDING APPROACH TO HOSPITAL LANDING PAD, LT MAIN LANDING GEAR UNSAFE LIGHT WOULD NOT EXTINGUISH AND GREEN SAFE LIGHT NOT ILLUMINATED. APPROACH ABORT AND TRANSITIONED TO THE AIRPORT WHERE A VISUAL OF THE LANDING GEAR WAS COMPLETED TO ENSURE DOWN. LT SEGMENT OF MAIN GEAR HARNESS WIRE BROKEN.…
From FAA Service Difficulty Reports; matched by N-number and serial number.