# NTSB FTW96LA106: Bellanca 17-30A, N4109B, Belen, NM, January 13, 1996 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: January 13, 1996, 13:30 local (20:30 UTC) - Place: Belen, NM - Coordinates: 34.649024, -106.770347 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=34.6490&lon=-106.7703&mi=10 - Phase of flight: [Unknown](https://openairdocs.org/ntsb-phases/990) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report November 11, 1996 - Report: Approved by Office Director - NTSB case key (mKey): 19752 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW96LA106 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/19752/pdf - Page: https://openairdocs.org/ntsb/FTW96LA106 ## Probable cause previous damage, looseness of the main landing gear, and inadequate maintenance. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Airframe/component/system failure/malfunction, unknown - landing gear,main gear attachment - previous damage (cause) - landing gear,main gear attachment - loose (cause) - maintenance - inadequate (cause) - Loss of control - on ground/water, landing - roll - directional control - not possible - ground loop/swerve - uncontrolled ## Analysis The pilot had purchased the airplane on 12/14/95 and had flown it about 23 hours since that date. During that time, he noted a transient instability in directional control during landing roll. During a landing on 1/13/96, he could not maintain directional control after touchdown, and the aircraft departed the side of the runway. No damage was found as a result of the runway departure; however, damage to the wing structure was found adjacent to the left main landing gear attach point. Also, the right main landing gear was found loose in its mounts, and its torque link was improperly shimmed. The right main landing gear problems could be found only by jacking the aircraft with the gear hanging free. There was evidence that over an undetermined period of time, the landing gear had been loose, and the resultant damage occurred. ## Factual narrative On January 13, 1996, at 1330 mountain standard time, a Bellanca 17-30A, N4109B, departed the side of the runway during landing roll at Belen, New Mexico. The private pilot and his passenger were not injured and the aircraft sustained substantial damage. Visual meteorological conditions prevailed and no flight plan was filed for this local area personal flight conducted under Title 14 CFR Part 91. The flight departed Belen at 1245. According to the pilot, the weather was clear with little wind. He said he had noted on previous flights that the aircraft occasionally pulled to the left and exhibited intermittent directional instability during takeoff and landing roll. The pilot stated that on previous landings during this flight, the aircraft had tended to pull left during landing roll but was easily controlled. On the landing during which the accident occurred, the pilot said the landing was smooth and the aircraft veered left immediately upon touch down before the nose wheel was on the runway. The attached pilot statement and diagram provide information that the aircraft exited the side of the runway and was brought to a stop on the median between the runway and taxiway after clearing a culvert without contact. According to the pilot, initial inspection of the aircraft by the pilot and a mechanic did not reveal damage sufficient to meet the NTSB accident definition. Examination by an FAA Airworthiness Inspector revealed damage to ribs and stringers adjacent to the left main landing gear attach point and he found that the right main landing gear was loose in the mounts and the torque link was improperly chimed. The right main landing gear condition was found when the aircraft was on body jacks with the gear free. The FAA inspector said he could find no damage directly attributable to the runway departure. The FAA inspector who examined the aircraft said he could not determine when the damage adjacent to the left main landing gear attach point took place or how long the right main landing gear had been loose in the mounts. He did say that it was possible that these conditions had been present for some period of time. The pilot said he purchased the aircraft on December 14, 1995, and according to his flight time, provided as part of completing NTSB Form 6120.1/2, he had flown the aircraft approximately 23 hours since it was purchased. During a telephone interview, the pilot stated he had no maintenance performed on the landing gear since purchasing the aircraft. ## Aircraft - Registration: [N4109B](https://openairdocs.org/aircraft/N4109B), registered now, S/N 75-30760, built 1974 (OpenAirDocs) - Reported make and model: BELLANCA 17-30A - Registry model: [Bellanca 17-30A](https://openairdocs.org/model/bellanca-17-30a) (registry code 1220433) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 75-30760 - Airframe hours: 2271 - Engines: CONTINENTAL IO-520-K 300 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: James D. Holm - Airworthiness certificate: Standard, Normal - Last inspection: Annual, May 26, 1995, 86 hours before - Departed: E80 - Airport: E80, Alexander Field, runway 21, 6,600 × 60 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 60; private; airplane ratings: single-engine land, multi-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 317 total, 22 in this make and model, 24 in the last 90 days, 21 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 240° at 2 knots - Visibility: 80 statute miles - Lowest ceiling: none - Temperature: 61 °F ## 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 19960113009469A](https://openairdocs.org/incident/19960113009469A), Jan 13, 1996: Blanca 1730A, Belen, NM, Substantial damage. Uncontrolled swerve off runway landing. Damaged ribs near gear attach. Torque link improper. Right gear mount loose 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. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.