Range Extension
No failure report names the range extension. 4 FAA approvals let 2 companies make a replacement range extension, Robertson Aviation LLC holding the most (3).
Approved replacement parts 4 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a range extension and sell it as an approved part for the models named. These are the companies holding such approvals for a range extension:
For these models most: Md Helicopters Inc 369 (4), Hughes 369 500 series helicopters (4), Mcdonnell Douglas Helicopter 600 (2), Mcdonnell Douglas Helicopter 500 (2), Mcdonnell Douglas Heli Co 369 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Robertson Fuel Systems LLC | Range Extension Fuel Tank Parts Listed on MDL-HA-010 Drawing | Modification Part | Boeing, McDonnell... 369, 369A, 369H | 2011-09-20 | current |
| Robertson Aviation LLC | Range Extension Fuel Tank Parts listed on MDL-HA-010 Dwg. | Modification Part | MD Helicopters, Inc. MDHI) (369, 369A, 369H | 2006-05-18 | current |
| Robertson Aviation LLC | Range Extension Fuel Tank Parts Listed on MDL-HA-010 Drawing | Modification Part | McDonnell Douglas 369, 369A, 369H | 2006-05-17 | current |
| Robertson Aviation LLC | Range Extension Fuel Tank Parts listed on MDL-HA-010 Dwg. | Modification Part | MD Helicopters, Inc. MDHI) (369, 369A, 369H | 1998-07-26 | current |
Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.