SDR XGNA2021041400011

Service difficulty report · Engine · Cessna 402B

Difficulty date: April 14, 2021
Submitted: April 14, 2021
Operation: Air carrier
Aircraft: N3378Q
Make and model: Cessna 402B
Aircraft serial: 402B0334
Aircraft time: 24,514 hours
Engine: Cont TSIO520EB
Engine time: 1,767 hours
System (JASC): 7713 · Manifold Pressure (MP) Indicating
Part: Engine
Condition: Power Loss
Location: Right
Stage of operation: CL
How discovered: V
Nature of condition: R
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

TAKEOFF WAS NORMAL 34.5” MP, 2700 RPM, FUEL FLOW IN THE WHITE ARC. DURING CLIMB POWER SETTINGS RIGHT ENGINE WOULD NOT MAINTAIN MAP SETTING. RETURNED TO EDC, LANDED WITH NO FURTHER ISSUES. TESTED ENGINE ON THE GROUND AND COULD ONLY GET 28” MP.

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