# NTSB SEA03LA145: Andelin S1E, N732E, Troutdale, OR, July 16, 2003 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 16, 2003, 16:15 local (23:15 UTC) - Place: Troutdale, OR - Coordinates: 45.548889, -122.398887 - Nearby events: https://openairdocs.org/map.md?lat=45.5489&lon=-122.3989&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 30, 2004 - Report: Approved by Office Director - Parties: FAA FSDO - NTSB case key (mKey): 57523 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA03LA145 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/57523/pdf - Page: https://openairdocs.org/ntsb/SEA03LA145 ## Probable cause The pilot's inability to maintain directional control due to an obstruction of the left brake line by foreign material resulting in asymmetrical braking. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Airframe/component/system failure/malfunction, landing - roll - hydraulic system,line - obstructed (cause) - landing gear,normal brake system - asymmetrical - Loss of control - on ground/water, landing - roll - directional control - not possible - Nose down, landing - roll ## Analysis The pilot of the tail wheel equipped Andelin (Pitts) S1E reported that after a local flight he returned to his airport of departure and set up for an approach to runway 25. He made a 3-point touchdown and as the aircraft decelerated through about 40 miles per hour the aircraft began to drift right of centerline. The pilot attempted to correct with the application of left rudder but the aircraft continued to the right at which time he applied left brake. The aircraft's lower left wingtip then contacted the runway and the aircraft decelerated to a stop coming to rest on its nose and right wingtip. Post-crash examination of the aircraft's braking system revealed a piece of hose lining material within the left brake line at the caliper fitting which completely obstructed the left brake line. This condition would have resulted in asymmetrical braking. ## Factual narrative On July 16, 2003, approximately 1615 Pacific daylight time, a tail wheel equipped Andelin (Pitts) S1E experimental aircraft, N732E, registered to and being flown by an airline transport rated pilot, sustained substantial damage during a loss of control and nose down event during the landing roll at the Portland-Troutdale airport, Troutdale, Oregon. The pilot was uninjured. Visual meteorological conditions prevailed and no flight plan had been filed. The flight, which was personal, was operated under 14 CFR 91, and originated from Troutdale, earlier in the afternoon. The pilot reported that after a local flight he returned and set up for an approach to runway 25 at he Troutdale airport. He made a 3-point touchdown and as the aircraft decelerated through about 40 miles per hour the aircraft began to drift right of centerline. The pilot reported that he applied left rudder but the aircraft continued to the right at which time he applied left brake. The aircraft's lower left wingtip contacted the runway. The aircraft decelerated to a stop coming to rest on its nose and right wingtip. The pilot reported that the Troutdale air traffic control tower advised of variable winds at six knots. The 1653 surface weather observation taken at Troutdale airport reported winds as variable at three knots. Post-crash examination of the aircraft's braking system revealed a piece of hose lining material within the left brake line at the caliper fitting which completely obstructed the left brake line (refer to Attachment M-I and photograph 1). ## Aircraft - Registration: [N732E](https://openairdocs.org/deregistered/N732E-2013-06-07), registration cancelled 2013-06-07, S/N 8-0120, built 1992 (OpenAirDocs) - Reported make and model: Andelin (Pitts) S1E - Registry model: [Andelin Steven K S1E](https://openairdocs.org/model/andelin-steven-k-s1e) (registry code 7220535) (OpenAirDocs) - Registry engine: [Lycoming AEIO-360 series](https://openairdocs.org/engine/lycoming-aeio-360-series) (registry code 41522, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 8-0120 - Airframe hours: 682 - Engines: Lycoming AEIO-360-B4A 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Blessing, Robert L. - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, September 2, 2002, 14 hours before - Departed: TTD, Troutdale, OR - Destination: TTD, Troutdale, OR - Airport: TTD, Portland-Troutdale Airport, runway 25, 5,399 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 51; injuries: none; flight instructor, airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; last flight review March 6, 2003; seat: front; flight hours: 18,613 total, 260 in this make and model, 17,684 as pilot in command, 139 in the last 90 days, 52 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 280° at 7 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 79 °F, dew point 48 °F - Altimeter: 30.06 inHg - Observed at: TTD ## 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 20030716015919A](https://openairdocs.org/incident/20030716015919A), Jul 16, 2003: Amtr S1E, Portland, OR, Substantial damage. (-23) Loss of control while landing on runway 25 at Troutdale, OR. Pilot stated gusty cross winds as cause of the loss of control. He said the aircraft started… 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.