# NTSB IAD98LA056: Grumman G-44, N1AS, Cleveland, OH, May 12, 1998 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: May 12, 1998, 13:45 local (17:45 UTC) - Place: Cleveland, OH - Coordinates: 41.430881, -81.820083 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=41.4309&lon=-81.8201&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report March 31, 2000 - Report: Approved by Office Director - NTSB case key (mKey): 28296 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD98LA056 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/28296/pdf - Page: https://openairdocs.org/ntsb/IAD98LA056 ## Probable cause Failure of the pilot to extend the landing gear. A related factor was the diverted attention. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Wheels up landing, landing - flare/touchdown - gear extension - not performed, pilot in command (cause) - diverted attention, pilot in command (contributing factor) - On ground/water encounter with terrain/water, landing - flare/touchdown - terrain condition - runway ## Analysis According to the pilot, he forgot to extend the landing gear prior to landing. He was cleared for straight in landing on runway 10. He was distracted when he was advised that traffic would be landing on an intersecting runway, and he had to hold short of runway 10. He said he looked visually, sighted the landing traffic, and failed to check gear down. He failed to re-start the checklist after having been distracted in the middle of the list. He said there was no mechanical problems with the airplane, and the accident could have been prevented if he had double checked the gear position, and installed a now available gear warning system designed for amphibious aircraft. ## Factual narrative On May 12, 1998, at 1345 eastern daylight time, N1AS, a Grumman G-44, was substantially damaged when it collided with the runway during landing at the Cleveland Hopkins International Airport, Cleveland, Ohio. Visual meteorological conditions prevailed and a visual flight rules flight plan was filed. The certificated airline transport pilot was not injured. The business flight was conducted under 14 CFR Part 91. The flight originated at Chicago, Illinois. According to the pilot, he forgot to extend the landing gear prior to landing. He said, "...I was cleared for straight in landing on runway 10. I was distracted when I was advised, 'traffic would be landing runway 5 to hold short of runway 10.' I looked visually, sighted the landing traffic, and failed to check gear down...I failed to re-start my checklist after having been distracted in the middle of the list." The pilot reported over 30,000 hours of total flight experience, including 1,500 hours in make and model. He said there was no mechanical problems with the airplane, and the accident could have been prevented if he had double checked the gear position, and installed a now available gear warning system designed for amphibious aircraft. ## Aircraft - Registration: [N1AS](https://openairdocs.org/aircraft/N1AS), registered now, S/N 1230, built 1941 (OpenAirDocs) - Reported make and model: Grumman G-44 - Registry model: [Grumman G-44](https://openairdocs.org/model/grumman-g-44) (registry code 3951502) (OpenAirDocs) - Registry engine: [Lycoming GO-480 series](https://openairdocs.org/engine/lycoming-go-480-series) (registry code 41527, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 1230 - Engines: Lycoming GO-480-G2D6 295 horsepower reciprocating - Damage: Substantial damage - Flight: Business, Part 91 - Registered owner: Safe Flight Instrument Corp. - Airworthiness certificate: Standard, Normal - Departed: PWK, PALWAUKIE, IL - Destination: CLE, OH - Flight plan: VFR - Airport: CLE, Cleveland Hopkins, runway 10, 6,000 × 150 ft, concrete ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 60; flight instructor, flight engineer, airline transport; airplane ratings: multi-engine land, single-engine land, multi-engine sea, single-engine sea; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 30,000 total, 1,500 in this make and model, 27,600 as pilot in command, 18 in the last 90 days, 16 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 30° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: 2,500 ft broken - Temperature: 61 °F, dew point 57 °F - Altimeter: 29.00 inHg - Observed at: CLE ## 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 19980512009569A](https://openairdocs.org/incident/19980512009569A), May 12, 1998: Gulstm G44, Cleveland, OH, Substantial damage. Acft landed gear up. Cleveland, OH. (.4)according to the pilot, he forgot to extend the landing gear prior to landing. He was cleared for straight in landing… 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.