FTW95LA383

NTSB accident investigation · Piper PA-23 · Greeley, CO · September 8, 1995

Accident · No injuriesLimited investigationFinal report
Date
September 8, 1995, 16:35 local (22:35 UTC)
Place
Greeley, CO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N2291PPiper PA-23
Weather
Visual (VMC) · Day
Status
Completed · report February 14, 1996
Report
Approved by Office Director
FAA report
19950908028459A
Case key
19574

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

The pilot's improper in-flight planning/decision by inadvertently selecting a less suitable area for landing (than the runway). Factors relating to the accident were: a malfunction of the nose landing gear micro-switch, which resulted in a false indication that the nose landing gear was not down-and-locked, and rough/uneven terrain in the selected (grass) landing area beside the runway.

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.

Airframe/component/system failure/malfunctionApproach
Landing gear,gear indicating system - malfunctionFactor
Landing gear,gear indicating system - false indicationFactor
On ground/water encounter with terrain/waterLanding - roll
In-flight planning/decision - improperPilot in commandCause
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Terrain condition - rough/unevenFactor

Analysis

After entering the pattern on return from a local area personal flight, the pilot could not get a down-and-locked indication of the nose landing gear. The airport manager informed the pilot that all three landing gear appeared to be in the down position, and suggested that he check the light bulb and circle until the fire department arrived. The pilot replied in the affirmative then landed the aircraft in a grass area between the runway and taxiway. This grass area was rough and uneven. The landing gear remained down and locked during the landing roll. Examination of the aircraft revealed the nose landing gear micro-switch was out of adjustment. In the event of a nose landing gear unsafe indication, the aircraft operating procedures were to conduct a normal full flap landing and hold the nose gear from touching down as long as possible.

Factual narrative

On September 8, 1995, at 1635 mountain daylight time, a Piper PA- 23, N2291P, landed in the grass beside the runway at Greeley Weld County Airport, Greeley, Colorado. The commercial pilot was not injured and the aircraft sustained substantial damage. Visual meteorological conditions prevailed for this 14 CFR Part 91 local area personal flight and no flight plan was filed.

According to the airport manager, the pilot called UNICOM and reported that he had no down and locked indication on his nose landing gear. Persons on the ground observed that all three landing gear appeared to be down. The airport manager said that it was suggested to the pilot that he check the light bulb and circle until the fire department arrived. The pilot responded in the affirmative and then proceeded to land in the grass area between the runway and taxiway. The damage to the aircraft occurred during landing roll in the grass area which was rough and uneven.

During landing roll, the landing gear remained in the down and locked position; however, the rough terrain caused the left wing and engine to contact the ground damaging the wing, engine, and propeller.

Examination of the aircraft by a Federal Aviation Administration inspector revealed a short in the nose landing gear down and a locked micro switch.

According to the POH (pilot operating handbook), in the event the nose landing gear does not extend or indicates unsafe, a normal full flap landing should be made and the nose landing gear should be held off the ground as long as possible.

Aircraft

Registration
N2291P
Reported as
Piper PA-23
Category
Airplane
Serial number
23-902
Airframe hours
2,668
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Richard C. Nolan
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 1, 1994 · 30 hours before
Departed
GXY
Airport
GXY · Greeley Weld County, runway 27, 6,200 × 100 ft, asphalt

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
85
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
20,000 total · 200 in this make and model · 20,000 as pilot in command · 15 in the last 90 days · 10 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 52 °F
Altimeter
30.00 inHg
Observed at
GXY, 1 nm away

FAA reports on this event · 1

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

Other investigations on N2291P · 1

Matched to the same aircraft by N-number and date.