NYC99LA154

NTSB accident investigation · Cessna 172RG · Morristown, NJ · May 23, 1999

Accident · No injuriesLimited investigationFinal report
Date
May 23, 1999, 18:45 local (22:45 UTC)
Place
Morristown, NJ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9475BCessna 172RG
Weather
Instrument (IMC) · Dusk
Status
Completed · report September 19, 2000
Report
Approved by Office Director
FAA report
19990523047849A
Case key
46600

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 right main landing gear collapsed for undetermined reasons.

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.

Gear collapsedLanding
Landing gear,main gear - collapsedCause
Reason for occurrence undeterminedCause

Analysis

The pilot stated that she received her approach clearance about 12 miles from the airport. At that time, she lowered the landing gear and performed a 'gumps' check which included checking the gas, undercarriage, mixture and propeller. After lowering the landing gear, she observed a green landing gear light. The landing seemed normal, and the pilot did not hear a gear warning horn. The right main landing gear collapsed and the airplane spun 180 degrees on the runway. Examination of the wreckage by a Federal Aviation Administration Inspector, and a local mechanic, did not reveal any pre-impact mechanical malfunctions.

Factual narrative

On May 23, 1999, about 1845 Eastern Daylight Time, a Cessna 172RG, N9475B, was substantially damaged while landing at the Morristown Municipal Airport (MMU), Morristown, New Jersey. The certificated commercial pilot and passenger were not injured. Instrument meteorological conditions prevailed for the flight that originated from Ocean City Municipal Airport, Ocean City, Maryland. An instrument flight rules flight plan was filed for the personal flight conducted under 14 CFR Part 91.

The pilot stated that she received her approach clearance about 12 miles from MMU. At that time, she lowered the landing gear and performed a "gumps" check. After lowering the landing gear, she observed a green landing gear light. The landing seemed normal, and the pilot did not hear a gear warning horn. Then the right wing lowered to the runway, and the airplane spun 180 degrees on the runway. The pilot further stated that she only performed 1 "gumps" check.

According to Air Traffic Control Specialists, the airplane touched down on Runway 23, spun 180 degrees, and came to rest on the runway. The pilot radioed the control tower and advised that the right main landing gear had collapsed.

Examination of the wreckage by a Federal Aviation Administration Inspector, and a local mechanic, did not reveal any pre-impact mechanical malfunctions. The Inspector observed damage to the elevator, horizontal stabilizer, right aileron, right flap, and right main landing gear. Additionally, he reported that the empennage and right wing sustained structural damage.

At 1845, the reported weather at MMU was: wind calm; visibility 1 mile, mist; ceiling 400 feet overcast, temperature 64 degrees Fahrenheit, dewpoint 63 degrees, altimeter 29.80 inches of Hg.

Aircraft

Registration
N9475B
Reported as
Cessna 172RG
Category
Airplane
Serial number
172RG0834
Airframe hours
3,549
Engine
Lycoming O-360, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Iris Vogel
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 11, 1998 · 68 hours before
Departed
OXB · Ocean City, MD
Destination
MMU
Flight plan
IFR
Airport
MMU · Morristown Municipal, runway 23, 5,999 × 150 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
42
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
607 total · 122 in this make and model · 541 as pilot in command · 39 in the last 90 days · 17 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Dusk
Wind
Calm
Visibility
1 statute miles
Lowest ceiling
400 ft overcast
Temperature
64 °F, dew point 63 °F
Altimeter
29.00 inHg
Observed at
MMU

FAA reports on this event · 1

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