CHI97LA006

NTSB accident investigation · Callair B1A · Nebraska City, NE · October 9, 1996

Accident · Minor injuriesLimited investigationFinal report
Date
October 9, 1996, 14:30 local (19:30 UTC)
Place
Nebraska City, NE
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N6203XCallair B1A
Weather
Visual (VMC) · Day
Status
Completed · report May 23, 1997
Report
Approved by Office Director
FAA report
19961009031519A
Case key
10475

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

a supercharger bearing failure. A factor was the excessive sink rate during the forced landing.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(partial) - mech failure/malfCruise - normal
Eng assembly,blower/impeller/integral supercharger - wornCause
Forced landingEmergency descent/landing
Gear collapsedLanding - flare/touchdown
Proper descent rate - exceededPilot in commandFactor
Landing gear,main gear - overload

Analysis

The pilot reported he was cruising at 3,300 feet mean sea level. All gauges were 'normal.' He heard a 'loud back fire' and the engine lost power. He pushed the throttle, mixture and propeller control full forward. The engine continued to run at 'idle speed.' During the subsequent forced landing, he landed with 'low airspeed and high sink rate.' The landing gear collapsed and the engine was bent downward. Examination of the engine revealed several spark plugs and the top of the pistons were oil covered. Several spark plugs 'appeared to have been running rich.' There was 'a lot of oil in the plenum chamber' and the supercharger blades had 'excessive rub on the rear face.'

Factual narrative

On October 9, 1996, at 1430 central daylight time, a Callair B1A, N6203X, sustained substantial damage when the landing gear collapsed during a forced landing near Nebraska City, Nebraska. The commercial pilot reported minor injuries. The 14 CFR Part 91, ferry flight was operating in visual meteorological conditions. No flight plan was on file. The flight departed Yankton, South Dakota, about 1240, with a planned destination of Shenandoah, Iowa.

The pilot reported he was cruising at 3,300 feet mean sea level. All gauges were "normal." He heard a "loud back fire" and the engine lost power. He pushed the throttle, mixture and propeller control full forward. The engine continued to run at "idle speed." He initially attempted to land at the nearest airport, Grunman County Airport, but "it became evident" that he would not make it to the airport. He selected a field for a forced landing. He lowered the flaps, then noticed farm equipment in the field. He side stepped to a different field and landed with "low airspeed and high sink rate." He landed "flat" on the main landing gear. The gear collapsed and the engine was bent downward. He egressed the airplane with minor injury.

The Federal Aviation Administration Inspector who examined the engine reported that several spark plugs and the top of the pistons were oil covered. Several spark plugs "appeared to have been running rich." There was "a lot of oil in the plenum chamber." The supercharger blades had "excessive rub on the rear face."

Aircraft

Registration
N6203X
Reported as
Callair B1A
Category
Airplane
Serial number
10004
Engine
P&W R-985, reciprocating
Damage
Substantial damage
Flight
Ferry · Part 91
Registered owner
Graham Lott
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · October 7, 1996 · 1 hours before
Departed
YKN · Yankton, SD
Destination
SDA · Shenandoah, IA

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
26
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
940 total · 5 in this make and model · 900 as pilot in command · 34 in the last 90 days · 14 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 18 knots
Visibility
7 statute miles
Lowest ceiling
None

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.