LAX94LA302

NTSB accident investigation · Cessna 421C · Polacca, AZ · July 29, 1994

Accident · No injuriesLimited investigationFinal report
Date
July 29, 1994, 16:20 local (23:20 UTC)
Place
Polacca, AZ
Injuries
5 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N985RACessna 421C
Weather
Visual (VMC) · Day
Status
Completed · report November 14, 1994
Report
Approved by Office Director
FAA report
19940729025049A
Case key
28812

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 attempt to make a 180-degree turn in soft sand at a speed which imposed side loading on the nose gear. Factors were the pilot's decision to continue the approach beyond the planned touchdown point, the effect of the runway surface on braking action, and the bird strike.

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.

On ground/water collision with objectLanding - flare/touchdown
Object - bird(s)Factor
OverrunLanding - roll
Terrain condition - rough/unevenFactor
Proper touchdown point - not attainedPilot in commandFactor
All available runway - not usedPilot in commandFactor
Nose gear collapsedLanding - roll
Terrain condition - softFactor
Taxispeed - excessivePilot in commandCause
Ground loop/swerve - intentionalPilot in commandCause
Design stress limits of aircraft - exceededPilot in commandCause

Analysis

The pilot reported he observed the windsock hanging limp and initiated an approach to runway 22. After turning final, he noticed that the aircraft floated more than usual and suspected that he had a tail wind. Upon touchdown, a bird impacted the copilot's windscreen and he said he may have delayed braking as he attempted to avoid the flock. After touchdown, he said the braking action was less than normal because of the roughness of the tar and dirt build up on the runway surface. By the time he was able to slow the aircraft's landing roll, he had overrun the runway. He immediately noticed the aircraft was rolling into soft sand and was attempting to use his momentum to make a 180-degree turn back to runway when the nose gear collapsed.

Factual narrative

On July 29, 1994, at 1620 hours mountain standard time, a Cessna 421C, N985RA, sustained substantial damage during a landing overrun at Polacca, Arizona. The aircraft was operated by Life Flight and was on a revenue flight under 14 CFR Part 135 of Federal Aviation Regulations. Visual meteorological conditions were prevalent at the time of the accident and a company (VFR) flight plan had been filed for the operation. Neither the certificated airline transport pilot, the two crew members, nor the two passengers were injured. The flight originated from Flagstaff Pulliam airport at 1550 on the day of the accident.

The pilot reported that he observed the windsock hanging limp and initiated an approach to runway 22. After turning final, he noticed that the aircraft floated more than usual and he suspected a tail wind. The approach speed and descent rate were normal. Upon touchdown, a bird impacted the copilot's windscreen and he said he may have delayed braking as he attempted to avoid the flock. After touchdown, the braking action was less than normal because of the roughness of the tar and dirt build up on the runway surface. By the time he was able to slow the aircraft's landing roll to approximately 10 knots, he had overrun the runway. He immediately noticed the aircraft was rolling into soft sand and was attempting to use his momentum to make a 180- degree turn back to runway when the nose gear collapsed.

Aircraft

Registration
N985RA
Reported as
Cessna 421C
Category
Airplane
Serial number
421C-0083
Airframe hours
4,149
Engine
Continental GTSIO-520L, 375 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Randsburg Corp., doing business as Life Flight
Registered owner
Randsburg Corp.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · July 8, 1994 · 43 hours before
Departed
FLG · Flagstaff, AZ
Flight plan
Company VFR
Airport
4PH · Palocca, runway 22, 4,200 × 50 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
36
Certificates
Airline transport, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
5,121 total · 87 in this make and model · 4,299 as pilot in command · 27 in the last 90 days · 27 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 3 knots
Visibility
65 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 54 °F
Altimeter
30.00 inHg
Observed at
PRC, 119 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.