The pilot of a tbm 850 learned well after the fact that the on board etm [engine trend monitor] had ...

Narrative:

Much is unknown about this event. The shadin etm installed in the aircraft recorded a vne exceedence. Vne; per the approved flight manual is 266 KIAS. The shadin system recorded that 266 KIAS was exceeded for 14 seconds; and the maximum speed was 278 KIAS.the aircraft manufacturer has an eleven page checklist contained in the maintenance manual outlining the items required for the test flight. It is a required sign-off following a 600 hour or annual inspection.pilots performing the required test flights are not graduates of any test pilot school or program that I am aware of. Additionally; I am not aware of their having received any training from the manufacturer on any specific process or procedures for conducting this flight test.I know of no other manufacturer that allows; or requires a test flight (by an untrained individual) where a requirement is to exceed a published limitation.my impression is that this checklist was originally intended to be applied to some other event or requirement; possibly performed by a factory production test pilot.I believe the process creates liability for both socata and the service center returning the aircraft to service for the customer.

Original NASA ASRS Text

Title: The pilot of a TBM 850 learned well after the fact that the on board ETM [Engine Trend Monitor] had recorded a Vne exceedence; as required by the manual; during a previous test flight performed under his command. The reporter was not a trained test pilot.

Narrative: Much is Unknown about this event. The Shadin ETM installed in the aircraft recorded a VNE exceedence. VNE; per the Approved Flight Manual is 266 KIAS. The Shadin System recorded that 266 KIAS was exceeded for 14 seconds; and the maximum speed was 278 KIAS.The aircraft Manufacturer has an eleven page checklist contained in the Maintenance Manual outlining the items required for the test flight. It is a required sign-off following a 600 hour or Annual Inspection.Pilots performing the required test flights are not graduates of any test pilot school or program that I am aware of. Additionally; I am not aware of their having received any training from the manufacturer on any specific process or procedures for conducting this flight test.I know of no other manufacturer that allows; or requires a test flight (by an untrained individual) where a requirement is to exceed a published limitation.My impression is that this checklist was originally intended to be applied to some other event or requirement; possibly performed by a Factory Production Test Pilot.I believe the process creates liability for both Socata and the Service Center returning the aircraft to service for the customer.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	976021
Time
Date	201108
Local Time Of Day	0601-1200
Aircraft 1
Make Model Name	TBM 700/TBM 850
Operating Under FAR Part	Part 91
Flight Phase	Descent
Flight Plan	IFR
Person 1
Function	Single Pilot
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 30 Flight Crew Total 18145 Flight Crew Type 700
Events
Anomaly	Deviation - Procedural Published Material / Policy Deviation - Speed All Types

The pilot of a tbm 850 learned well after the fact that the on board etm [engine trend monitor] had recorded a vne exceedence; as required by the manual; during a previous test flight performed under his command. The reporter was not a trained test pilot.