- Date
- November 14, 2021, 14:23 local (22:23 UTC)
- Place
- Boulder City, NV
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N5057SPiper PA-28R-200
- Defining event
- Approach-VFR pattern final: Sys/Comp malf/fail (non-power)
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 3
- NTSB office
- Western Pacific Region
- Parties
- FAA-FSDO, Piper Aircraft
- Case key
- 104273
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The NTSB’s determination of the probable cause, and any contributing factors.
The installation of an improper right main landing gear door rod-end bolt, which resulted in the right main landing gear not extending during landing.
Findings · 1
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings.
Analysis
During an approach to the airport, the right main landing gear would not extend. The pilot cycled the landing gear and made several abrupt, high-G maneuvers to try and free the right main landing gear from its retracted position. Despite his actions, the right main landing gear would not extend. During the landing, the airplane sustained substantial damage to the aft fuselage and right wing. During the postaccident examination of the airplane, the right main landing gear wheel well exhibited mechanical damage consistent with contact from the threaded end of the right gear door rod-end bolt. The right main landing gear door rod-end bolt had about 4 additional threads than the bolt used on the left main landing gear. The bolt was removed, and its length was 1-4/25 inch, which was about 1/8 inch longer than the correctly installed bolt, which measured 1-1/32 inch. It is likely that during the accident flight, the right main landing gear could not fully extend due to the right gear door rod-end bolt positioning itself on the inside of the landing gear wheel well, preventing the landing gear from extending.
Factual narrative
The factual narrative445 words
On November 14, 2021, about 1423 Pacific standard time, a Piper PA-28R-200 airplane, N5057S, was substantially damaged when it was involved in an accident at the Boulder City Municipal Airport (BVU), Boulder City, Nevada. The pilot and passenger were not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that after receiving the airplane from the paint shop, he conducted two takeoffs and landings in the local traffic pattern to check that the landing gear retracted and extended properly. Once the maintenance check flight was completed, he and his passenger departed on the accident flight to BVU. During the approach to BVU, the right main landing gear would not extend. The pilot cycled the landing gear and made several abrupt, high-G maneuvers to try and free the right main landing gear from its retracted position. Despite his actions, the right main landing gear would not extend. The pilot decided to land with the left main landing gear and the nose landing gear extended. As the airplane slowed during the landing roll, the right wing dropped to the runway surface and the airplane veered off the right side of the runway. The airplane came to rest over a small ditch and sustained substantial damage to the aft fuselage and right wing. The pilot reported that the right main landing gear was retracted, and the landing gear door was opened about 1 to 2 inches. He said that he positioned himself in the ditch below the landing gear and pulled hard on the door to extend the gear. After a couple of attempts, the landing gear suddenly dropped down into place. During a postaccident examination, the airplane was lifted up on jacks and the airplane’s landing gear was examined. The emergency gear extension functioned normally, and both the nose landing gear and main gear fell into the down and locked position. Mechanical damage was found on the right main landing gear wheel well near the right gear door rod-end bolt travel area. The mechanical damage was consistent with the threaded end portion of the bolt. The right main landing gear door rod-end bolt had about 4 additional threads than the bolt used on the left main landing gear. The bolt was removed, and its length was 1-4/25 inch, which was about 1/8 inch longer than the correctly installed bolt, which measured 1-1/32 inch. Figure 1-Landing gear linkage and wheel well damage. The paint shop reported that the gear doors were never removed from the landing gear structure during the painting process. They reported that on this type of aircraft they do not remove the gear doors.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident.
Aircraft
- Registration
- N5057S
- Reported as
- Piper PA-28R-200
- Category
- Airplane
- Serial number
- 28R-35784
- Built
- 1970
- Airframe hours
- 5,700
- Engine
- Lycoming IO-360, 200 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · December 1, 2020
- Departed
- SMX · Santa Maria, CA
- Destination
- Same as departure
- Flight plan
- IFR
- Airport
- BVU · Boulder City Muni, runway 27, 5,103 × 75 ft, asphalt
- Equipment
- ADS-B
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
- 67
- Injuries
- None
- Certificates
- Flight engineer, Airline transport, Flight instructor, Private, Commercial, Military
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, With waivers/limitations
- Last flight review
- April 19, 2021
- Seat
- Left
- Restraint
- Lap only
- Flight hours
- 18,000 total · 30 in this make and model · 6,000 as pilot in command · 60 in the last 90 days · 30 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 50° at 4 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 62 °F, dew point 15 °F
- Altimeter
- 29.02 inHg
- Icing
- Unknown
- Turbulence
- Unknown
- Observed at
- KBVU
- METAR
- METAR KBVU 142215Z AUTO 05004KT 10SM CLR 26/M03 A3015 RMK AO2
Docket · 8
The files NTSB released with the investigation on January 4, 2024, on NTSB’s docket system: statements, records, photos and specialists’ reports. 12.0 MB in all.
Other investigations on N5057S · 1
Matched to the same aircraft by N-number and date.