# NTSB FTW97LA210: Beech 60, N7396D, Pueblo, CO, June 4, 1997

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 4, 1997, 17:16 local (23:16 UTC)
- Place: Pueblo, CO
- Coordinates: 38.290378, -104.539352 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.2904&lon=-104.5394&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report January 30, 1998
- Report: Approved by Office Director
- NTSB case key (mKey): 20234
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW97LA210
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/20234/pdf
- Page: https://openairdocs.org/ntsb/FTW97LA210

## Probable cause

loss of power in the right engine and failure of the right propeller to feather for undetermined reasons.  A factor relating to the accident was: the pilot's failure or inability to align the airplane with the runway during the forced landing.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power, cruise - normal
  - 1 engine
  - reason for occurrence undetermined (cause)
- Forced landing, emergency descent/landing
  - propeller feathering - not obtained (cause)
  - reason for occurrence undetermined (cause)
- Complete gear collapsed, landing - flare/touchdown
  - proper alignment - not attained, pilot in command (contributing factor)
  - landing gear - overload

## Analysis

The pilot said the right engine lost power while the airplane was in cruise flight at 11,000 feet. He attempted to feather the propeller, but was unsuccessful. The airplane began losing altitude, and the pilot was unable to arrest the descent. He returned the throttle to the full power position, declared an emergency, and diverted to the nearest suitable airport. As the airplane approached the airport, the pilot saw that he was almost perpendicular to the runway of intended landing, about 50 feet above the ground, and at low airspeed. As he turned to align the airplane, the right main landing gear struck the runway. The pilot lost directional control and the airplane skidded sideways. The landing gear collapsed, and the airplane slide to a halt. Both engines were later functionally tested, and operated normally and at full power. According to the Beech Aircraft Corporation, under the conditions that prevailed, the airplane had an approximate 200 feet per minute single engine rate of climb. Single engine service ceiling was 15,700 feet.

## Factual narrative

On June 4, 1997, at 1716 mountain daylight time, a Beech 60, N7396D, was substantially damaged when it collided with terrain during landing at Pueblo, Colorado.  The private pilot and two passengers were not injured.  Visual meteorological conditions prevailed, and an IFR flight plan had been filed for the business flight conducted under Title 14 CFR Part 91.  The flight originated at Las Vegas, Nevada, on June 4, approximately 1315 Pacific daylight time, and was en route to Goodland, Kansas.

In his accident report, the pilot said the right engine lost power while the airplane was in cruise flight at 11,000 feet.  He attempted to feather the propeller, but was unsuccessful.  The airplane began losing altitude and the pilot was unable to arrest the descent.  He returned the right throttle to the full power position, declared an emergency, and diverted to the nearest suitable airport.  As the airplane approached Pueblo Memorial Airport, the pilot saw that he was almost perpendicular to the runway of intended landing (26R), about 50 feet above the ground, and at low airspeed.  As he turned to align the airplane with the runway, the right main landing gear struck the runway.  The pilot lost directional control and the airplane skidded sideways.  The landing gear collapsed and the airplane slid to a halt east of taxiway J.  The pilot reported both propellers, right wing, and underside were damaged.

In a subsequent telephone interview, the pilot said the right engine began to lose power; specifically, manifold pressure dropped to "about half of what it should have been."  The pilot said he secured the engine.

Information received from personnel at the accident site indicated significant damage to the left propeller but little damage to the right propeller.  Both engines were shipped back to the Textron Lycoming factory in Williamsport, Pennsylvania, for functional testing.  The right engine was tested on September 9 and the left engine was tested on September 10.  According to the FAA inspector's statement, "both engines performed within the parameters of the manufacturer's specifications" and "there were no significant abnormalities noted."

According to Textron Lycoming's report, examination of the left engine disclosed the right magneto's no. 1 bottom tower and ignition harness were burnt.  The report noted that "this condition did not affect the engine run, but if operated at high altitudes the magneto could cross-fire and create engine problems."

Examination of the right engine disclosed damage to the no. 4 cylinder drain line, and the no. 4 exhaust pipe was cracked and bulged outward.  In addition, the exhaust cables were not installed in accordance with Textron Lycoming Service Bulletin 479.  These discrepancies, however, had no effect on the engine run.

According to the Beech Aircraft Corporation, the Beech 60 at 11,000 feet (outside air temperature 14 degrees C., standard adiabatic lapse rate and maximum gross weight assumed) will have approximately a 200 feet per minute single engine rate of climb.  Single engine service ceiling is 15,700 feet.

## Aircraft

- Registration: [N7396D](https://openairdocs.org/deregistered/N7396D-1998-07-17), registration cancelled 1998-07-17, S/N P120 (OpenAirDocs)
- Reported make and model: Beech 60
- Registry model: [Beech 60](https://openairdocs.org/model/beech-60) (registry code 1153602) (OpenAirDocs)
- Category: Airplane
- Serial number: P-120
- Airframe hours: 2750
- Engines: Lycoming TIO-541-E4C5 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Davron Air, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 29, 1996, 75 hours before
- Departed: LAS, LAS VEGAS, NV
- Destination: GLD, GOODLAND, KS
- Flight plan: IFR
- Airport: PUB, Pueblo Memorial, runway 26, 10,496 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 48; private; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 1,129 total, 459 in this make and model, 989 as pilot in command, 30 in the last 90 days, 18 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 100° at 15 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 79 °F, dew point 46 °F
- Altimeter: 29.00 inHg
- Observed at: PUB

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19970604013699A](https://openairdocs.org/incident/19970604013699A), Jun 4, 1997: Beech 60, Pueblo, CO, Substantial damage. Aircraft inbound with right engine out, attempted to land, landed and went off left side of runway.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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