# NTSB ATL95LA053: Schweizer 269B, N11XC, Addison, AL, February 18, 1995 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: February 18, 1995, 13:42 local (19:42 UTC) - Place: Addison, AL - Coordinates: 34.190753, -87.170036 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=34.1908&lon=-87.1700&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report September 24, 1995 - Report: Approved by Office Director - NTSB case key (mKey): 3524 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL95LA053 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/3524/pdf - Page: https://openairdocs.org/ntsb/ATL95LA053 ## Probable cause THE PILOT'S IMPROPER USE OF THE THROTTLE CONTROL DURING A DESCENT WHICH RESULTED IN A HARD LANDING. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Hard landing, landing - throttle/power control - improper use of, pilot in command (cause) - landing gear,skid assembly - overload - Gear collapsed, landing - landing gear,skid assembly - overload ## Analysis ACCORDING TO THE PILOT, DURING A DESCENT FOR A NORMAL LANDING, HE INADVERTENTLY ROLLED THE THROTTLE OFF. AS THE HELICOPTER APPROACHED THE GROUND, HE ATTEMPTED TO RECOVER BUT WAS UNABLE TO ARREST THE SINK RATE. THE HELICOPTER COLLIDED WITH THE GROUND AND BROKE THE RIGHT SKID. NO MECHANICAL PROBLEMS WERE REPORTED. ## Factual narrative On February 18, 1995, at 1342 central standard time, a Schweizer 269B, N11XC, rolled over during a normal touchdown on runway 22 at Addison Municipal Airport in Addison, Alabama. The personal flight operated under the provisions of 14 CFR Part 91 with no flight plan filed. Visual weather conditions prevailed at the time of the accident. The helicopter was substantially damaged; the pilot and passenger were not injured. The flight departed Hanceville, Alabama, at 1242 hours. According to the pilot, he was on an approach for a normal landing. When he applied collective to arrest the descent, there was no power response. As he approached the ground, the pilot realized that he had inadvertently rolled the throttle off. The helicopter touched down hard on the right skid and broke the landing gear. There were no mechanical problems with the helicopter. ## Aircraft - Registration: [N11XC](https://openairdocs.org/deregistered/N11XC-2018-02-28), registration cancelled 2018-02-28, S/N 0102, built 1965 (OpenAirDocs) - Reported make and model: SCHWEIZER 269B - Registry model: [Hughes 269B](https://openairdocs.org/model/hughes-269b) (registry code 4470502) (OpenAirDocs) - Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs) - Category: Helicopter - Serial number: 64-D102 - Airframe hours: 7133 - Engines: LYCOMING HIO-260-A1A 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Wallace State College - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, June 5, 1995, 60 hours before - Departed: NONE, HANCEVILLE, AL - Airport: 2AB, Addison Municipal Airport, runway 22, 2,800 × 200 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 38; private; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 274 total, 50 in this make and model, 33 in the last 90 days ## Weather - Conditions: Visual (VMC), Day - Wind: 70° at 6 knots - Visibility: 7 statute miles - Lowest ceiling: 1,100 ft overcast - Temperature: 55 °F, dew point 52 °F - Altimeter: 30.00 inHg - Observed at: BHM, 45 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 (OpenAirDocs). - [Accident 19950218002129A](https://openairdocs.org/incident/19950218002129A), Feb 18, 1995: Hughes 269B, Addison, AL, Substantial damage. Rolled throttle off instead of collective on descent for landing. Impact broke off right skid. Rolled over. ## Other investigations on N11XC (4) 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. - [NTSB CEN10CA469](https://openairdocs.org/ntsb/CEN10CA469), Aug 7, 2010: Hughes 269B (N11XC), Lakeview, MI, substantial damage. Probable cause: The pilot's excessive descent angle during landing approach, which resulted in a settling with power condition. - [NTSB FTW91FA123](https://openairdocs.org/ntsb/FTW91FA123), Jul 18, 1991: Hughes 269B (N11XC), Brickeys, AR, destroyed, 1 fatal. Probable cause: THE FAILURE OF THE CLUTCH CONTROL CABLE DUE TO FRAYING WHICH INITIATED THE FORCED LANDING AND THE OPERATOR'S FAILURE TO PERFORM RECOMMENDED INSPECTIONS ON THE AIRCRAFT. FACTORS WERE THE PILOT'S… - [NTSB MKC76DCA07](https://openairdocs.org/ntsb/MKC76DCA07), Aug 6, 1975: Hughes 269B (N11XC), Kennett, MO, substantial damage - [NTSB FTW74FPM15](https://openairdocs.org/ntsb/FTW74FPM15), Dec 22, 1973: Hughes 269B (N11XC), Tulsa, OK, substantial damage 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.