Required maintenance and inspection intervals are given below. Publications listed are subject to revision.

Preventive maintenance is required between scheduled inspections. Fluid leaks, discoloration, fretting, galling, chafing, nicks, scratches, dents, cracks, and corrosion all warrant further investigation.

 

First
100
hours

Every
100
hours

First
150
hours

Every
150
hours

Every
300
hours

Every
500
hours

First
1100
hours

Every
2200
hours

Every
12
months

Every
24
months

Every
12
years

Verify track and balance of rotor system.

X

Drain and flush main rotor and tail rotor gearboxes.

X

X

Drain and flush transfer gearbox.

X

X

Full inspection.

X

X

Inspect main rotor blade spindles.

X

Overhaul main rotor and tail rotor gearboxes.

X

Inspect transfer gearbox.

X

X

Overhaul transfer gearboxs.

X

X

Clean gearbox chip detectors.

X

X

X

Test and inspect transponder.

X

Overhaul helicopter.

X

X

Inspect ELT.

X

Perform 12-year inspection and limited overhaul.

X

Inspect and service engine per TS100 Maintenance Manual (PP-54).

X

X

X

X

X

X