Zero Timed Engine

[Pat Carry]

I know there are numerous people out there that can answer this question, technically speaking what does the term zero timed engine mean?

[51fixer]

I know there are numerous people out there that can answer this question, technically speaking what does the term zero timed engine mean?

FAR 91.421

§ 91.421 Rebuilt engine maintenance records.

(a) The owner or operator may use a new maintenance record, without previous operating history, for an aircraft engine rebuilt by the manufacturer or by an agency approved by the manufacturer.

(b) Each manufacturer or agency that grants zero time to an engine rebuilt by it shall enter in the new record—

(1) A signed statement of the date the engine was rebuilt;

(2) Each change made as required by airworthiness directives; and

(3) Each change made in compliance with manufacturer's service bulletins, if the entry is specifically requested in that bulletin.

(c) For the purposes of this section, a rebuilt engine is a used engine that has been completely disassembled, inspected, repaired as necessary, reassembled, tested, and approved in the same manner and to the same tolerances and limits as a new engine with either new or used parts. However, all parts used in it must conform to the production drawing tolerances and limits for new parts or be of approved oversized or undersized dimensions for a new engine.


FAR- 43.2

§ 43.2 Records of overhaul and rebuilding.

(a) No person may describe in any required maintenance entry or form an aircraft, airframe, aircraft engine, propeller, appliance, or component part as being overhauled unless—

(1) Using methods, techniques, and practices acceptable to the Administrator, it has been disassembled, cleaned, inspected, repaired as necessary, and reassembled; and

(2) It has been tested in accordance with approved standards and technical data, or in accordance with current standards and technical data acceptable to the Administrator, which have been developed and documented by the holder of the type certificate, supplemental type certificate, or a material, part, process, or appliance approval under part 21 of this chapter.

(b) No person may describe in any required maintenance entry or form an aircraft, airframe, aircraft engine, propeller, appliance, or component part as being rebuilt unless it has been disassembled, cleaned, inspected, repaired as necessary, reassembled, and tested to the same tolerances and limits as a new item, using either new parts or used parts that either conform to new part tolerances and limits or to approved oversized or undersized dimensions.

[cooper9411]

I know there are numerous people out there that can answer this question, technically speaking what does the term zero timed engine mean?

It generally means, hand over your wallet and bend over!


I am only kidding. Just trying to share a little laughter and I hope I did not offend anyone.

[Pat Carry]

I know there are numerous people out there that can answer this question, technically speaking what does the term zero timed engine mean?

It generally means, hand over your wallet and bend over!


I am only kidding. Just trying to share a little laughter and I hope I did not offend anyone.

I'm sure its not a cheap undertaking. How much would it cost to rebuild the engine shown on the TBM thread?

[cooper9411]

Depends. There are way to many variables that could be involved. A starting cost is around 50k!

Last edited by cooper9411 on Wed Jan 25, 2012 2:42 pm, edited 1 time in total.

[B-25 MM Jim]

I'd edit that to say: BASE cost is around $50K. More like $55K.