19960916033929I

Incident

FAA incident report · Piper PA60601P · Brigham City, UT · September 16, 1996

Date: September 16, 1996 · 16:27 local
Place: Brigham City, UT
Airport: Brigham City Airport
Phase of flight: Climb
Operating rules: General operating rules (Part 91)
Aircraft: N601BB
Reported as: Piper PA60601P
Reported engine: Lycoming IO540S1A5
People aboard: 2
Fatal injuries: 0
Pilot’s flight hours: 1,700 total350 in this make and model20 in the last 90 days

N601BBRegistered now · Smith AEROSTAR 601PS/N 61P-0431-159 · Built 1977 Airframe modelSmith AEROSTAR 601P Engine modelLycoming TI0-540 seriesTurbo-prop

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Narrative: on sept. 16, 1996, at 1670 MST, a Piper PA-60 piloted by Mr. Robert norris departed Brigham City Airport. Twenty minutes into the flight, in an altitude of 20,000 feet, the right engine lost power. The right engine manifold pressure dropped 12 inches from 37 to 25. Engine exhaust gas temperature dropped and cylinder head temperature stayed the same. Mr. Norris determined that the power was not completely lost. At a lower altitude the engine ran reasonably well. The aircraft landed and taxied to keystone aviation in salt lake city. An investigation of the right engine revealed a broken clamp on the indication collector boot, which connects the intercooler to the induction box. Loss of this seal allows the turbo charge to escape and the engine then becomes normally aspirated. The clamp was replaced and the engine performed normally. This is a final report.

As the FAA filed it

NARRATIVE: ON SEPT. 16, 1996, AT 1670 MST, A PIPER PA-60 PILOTED BY MR. ROBERT NORRIS DEPARTED BRIGHAM CITY AIRPORT. TWENTY MINUTES INTO THE FLIGHT, IN AN ALTITUDE OF 20,000 FEET, THE RIGHT ENGINE LOST POWER. THE RIGHT ENGINE MANIFOLD PRESSURE DROPPED 12 INCHES FROM 37 TO 25. ENGINE EXHAUST GAS TEMPERATURE DROPPED AND CYLINDER HEAD TEMPERATURE STAYED THE SAME. MR. NORRIS DETERMINED THAT THE POWER WAS NOT COMPLETELY LOST. AT A LOWER ALTITUDE THE ENGINE RAN REASONABLY WELL. THE AIRCRAFT LANDED AND TAXIED TO KEYSTONE AVIATION IN SALT LAKE CITY. AN INVESTIGATION OF THE RIGHT ENGINE REVEALED A BROKEN CLAMP ON THE INDICATION COLLECTOR BOOT, WHICH CONNECTS THE INTERCOOLER TO THE INDUCTION BOX. LOSS OF THIS SEAL ALLOWS THE TURBO CHARGE TO ESCAPE AND THE ENGINE THEN BECOMES NORMALLY ASPIRATED. THE CLAMP WAS REPLACED AND THE ENGINE PERFORMED NORMALLY. THIS IS A FINAL REPORT.