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Industry Pulse

Do you have a SMS for your Pt 135 Operations?
Savvy Maintenance
11.23.09 | 10:26 PM

Turbos, oil temp, and overboosting

The owner of a Florida-based 1977 Bonanza V35B with a turbonormalized TCM IO-520-BA engine contacted me with concerns about fuel flow. He described a recent instructional flight involving a takeoff on a "coolish day" that showed 31" MP, 2700 RPM, and 31 GPH fuel flow.

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11.23.09 | 10:18 PM

High CHTs and cracked cylinder heads

A member of a German flying club wrote me about a Robin DR-300 that the club used in about a 50-50 mix of cross-country flying and towplane operations for the club's sailplanes.

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09.22.08 | 5:55 AM

Recommended or Required?

Recently, my company SAMM was managing the annual inspection of a client’s Cirrus SR22 at a well-known maintenance facility in Texas. The inspection found very little wrong with the airplane, and it looked like the annual would be completed quickly and inexpensively. Then, quite unexpectedly, the IA responsible for the annual went to work for another shop, and a new IA was assigned to take over. Things quickly went downhill after that.

The new IA informed us that he would not be able to sign off the annual unless we agreed to have both TCM/Bendix S-20 magnetos overhauled or replaced, something that would add nearly $2,000 to the cost of the annual and delay its completion by at least a week. He stated that the magnetos were required to be replaced or overhauled because they had been in service for more than 4 years.

We told the IA we saw absolutely no reason to overhaul or replace the magnetos, and would not approve this work. The IA stubbornly refused to sign off the annual unless this work was done. After several back-and-forth iterations, it became obvious that we were at an impasse with the IA.

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