- Manufacturer (registry)
- LYCOMING
- Model
- O-540-B2B5
- Registry code
- 42337
- Installed in
- 27 registered aircraft
- Type
- Reciprocating
- Power
- 235 hp
- Data sheet
- TCDSE-295
- Holder
- Lycoming Engines
Model codes come from the FAA registry’s reference file.
On this page
Airworthiness directives that may apply · 28
ADs whose products match this engine model. Each AD’s applicability may narrow it by serial number, part number or configuration.
| 1963 | 2 |
|---|---|
| 1964 | 1 |
| 1966 | 2 |
| 1969 | 2 |
| 1977 | 2 |
| 1982 | 1 |
| 1989 | 2 |
| 1992 | 1 |
| 1995 | 1 |
| 1996 | 1 |
| 1997 | 1 |
| 1999 | 1 |
| 2004 | 2 |
| 2005 | 2 |
| 2006 | 4 |
| 2007 | 1 |
| 2008 | 1 |
| 2010 | 1 |
| 2012 | 2 |
| 2024 | 1 |
| 2026 | 2 |
Engine · Lycoming O-540-B2B5
AD 2026-17-10Reciprocating Engine Cylinder SectionAD 2026-04-11Engine (Reciprocating)AD 2012-19-01CrankshaftsQuery with SQL
duckdb -csv -c "SELECT d.ad_number, d.status, d.subject, d.effective_date
FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code IN ('42337'))
ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT d.ad_number, d.status, d.subject, d.effective_date
FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code IN ('42337'))
ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Information bulletins that may apply · 5
Engine · Lycoming O-540-B2B5
SAIB NE-19-08Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve CylindersSAIB NE-08-32R1Propeller Governor Idler Gear Shaft Set ScrewSAIB NE-14-13Reciprocating Engine - Cylinder Mounting StudsSAIB NE-13-06Pushrod Shroud Spring Retainers, Engine Components Part No. AEL14995, for Lycoming Engines 320, 360, and 540 Series EnginesSAIB NE-06-32R1Reciprocating Engine - CrankshaftHistorical bulletins · 1
Query with SQL
duckdb -csv -c "SELECT s.saib_number, any_value(s.title) AS title, max(s.issue_date) AS issue_date, any_value(s.status) AS status
FROM 'https://openairdocs.org/data/latest/faa_saib.parquet' s
WHERE s.saib_id IN (SELECT saib_id FROM 'https://openairdocs.org/data/latest/faa_engine_model_saib.parquet' WHERE engine_model_code IN ('42337'))
GROUP BY s.saib_number ORDER BY issue_date DESC"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT s.saib_number, any_value(s.title) AS title, max(s.issue_date) AS issue_date, any_value(s.status) AS status
FROM 'https://openairdocs.org/data/latest/faa_saib.parquet' s
WHERE s.saib_id IN (SELECT saib_id FROM 'https://openairdocs.org/data/latest/faa_engine_model_saib.parquet' WHERE engine_model_code IN ('42337'))
GROUP BY s.saib_number ORDER BY issue_date DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Registered aircraft · 27
N132CLMalecha Curtis E · Fergus Falls, MNN2399UChilhowee Soaring Association Inc · Benton, TNN274LCHuismann Lucas A · Whitehall, WI
See all 27 registered aircraftQuery with SQL
duckdb -csv -c "SELECT n_number, serial_number, year_manufactured, status, registrant_name, registrant_city, registrant_state
FROM 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet'
WHERE engine_model_code IN ('42337')
ORDER BY n_number"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT n_number, serial_number, year_manufactured, status, registrant_name, registrant_city, registrant_state
FROM 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet'
WHERE engine_model_code IN ('42337')
ORDER BY n_numberRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB investigations · 12
Aircraft matched to this engine model through the registry, by N-number and event date, checked against the reported serial number, make and model.
Of 3 cases NTSB coded with a defining event. All defining events
Findings NTSB made part of the probable cause. A case can have several. All findings
Of 4 cases with NTSB’s older coding, defined in its coding manual.
NTSB CEN24LA043Accident · No injuriesClass 4 · LimitedFinal reportBearhawk Four · Eau Claire, WIThe pilot’s failure to maintain directional control during landing.NTSB ERA20CA317Accident · No injuriesClass 4 · Data collectionFinal reportPiper PA25 · Destin, FLThe pilot's failure to manage the available fuel supply which resulted in fuel starvation and a total loss of engine power.NTSB GAA17CA371Accident · No injuriesData collectionFinal reportAero Commander Callair A 9 · Morgan, UTThe pilot’s failure to see and avoid transmission wires.NTSB CHI95LA172Accident · No injuriesLimited investigationFinal reportPiper PA-25-235 · Dawson, MNthe pilot's selection of unsuitable terrain for takeoff, and his failure to maintain directional control of the airplane on takeoff. A factor in the accident was the tall grass.NTSB CHI94LA006Accident · No injuriesLimited investigationFinal reportPiper PA-25-235 · Frankfort, MIthe pilot's failure to perform refueling.NTSB MKC89LA137Accident · Minor injuriesLimited investigationFinal reportPiper PA-25-235 · Clayton, KSThe failure of the pilot to compensate for the unfavorable wind conditions.NTSB CHI86FEM14Accident · No injuriesFinal reportPiper PA-25-235 · White Pigeon, MIThe pilot took off with a full load of seed on a 1300 ft runway during shifting wind conditions. He struck a fence before he had enough airspeed to establish a climb.NTSB MKC74FCA12Accident · No injuriesClosedAero Comdr A9B · Caruthersville, MONTSB MKC75FTG13Accident · No injuriesClosedPiper PA-25 · Kenmare, NDNTSB SEA68D0046Accident · No injuriesClosedCallair A-9 · Ulm, MTNTSB FTW66F0342Accident · No injuriesClosedPiper PA-25 · Terrell, TXNTSB CHI65F0097Accident · No injuriesClosedPiper PA-25 · Berlin, KY
Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = a.case_mkey
WHERE a.engine_model_code IN ('42337')
ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = a.case_mkey
WHERE a.engine_model_code IN ('42337')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
FAA incident reports · 11
Matched to this engine model through the registry, by N-number and event date, checked against the reported make and model.
Accident 20231121017059AHuismann Lucas A Bearhawk 4 Place · Eau Claire, WIOn 11/21/2023 at approximately 1600 UTC, the accident aircraft was cleared to land on rwy 32 at Chippewa Valley Regional Airport (keau). Immediately after touchdown, the accident aircraft veered to the left and slid sideways into the grass on the left side of…Accident 20200910013939APiper PA-25-235 · Okaloosa Island, FLWhile in a climb to 1000 ft., towing a banner, the aircraft's engine quit. The pilot managed to land the aircraft in the gulf of Mexico just off of the beach in destin, FL. The pilot manages to exit the aircraft and was subsequently picked up by passing…Accident 20170624024519AAero Commander Callair A-9 · Mountain Green, UTPilot used interstate 84 (Utah) while navigating to airport. Struck high power electric lines which traversed a canyon above the highway. Lines were not marked, but detailed on the sectional.Incident 20130830019141ICallair A-9 · Benton, TNThe PIC completed an extensive pre-flight inspection and engine run-up. Departure was conducted without a glider in tow as is customary for initial check of aircraft systems. Take-off roll was initiated from the right side of runway 03 to avoid prop-wash…Incident 19980111003289IPiper PA25 · Beasley, TXNarrative: aircraft began drifting to the right during roll-out. Applied left rudder with-out effect. Applied more left rudder and left aileron with-out effect. At about 15 mph, left wing dropped to the ground, aircraft veered to left. Prop struck mud and…Accident 19950603018979APiper PA25235 · Dawson, MNLost directional control on takeoff due to tall grass. Runway closed due broken asphalt. Collapsed landing gear. (-23) the aircraft was moved from the accident scene by truck, to b & d aviation at madison, MN, before the investigating inspector arrived at the…Accident 19931005038559APiper PA25235 · Frankfort, MIRan out of fuel on landing approach after a glider tow. Landed short of runway.Accident 19890618016119APiper PA25235 · Clayon, KSStruck the ground during a spray run. Believed caused by downdraft. Dust devils were in the area.Accident 19860818040649APiper PA25235 · White Pigeon, MIThe aircraft stalled into a corn field during takeoff. Shifting winds and turbulence factors.Accident 19741009035899AAirpts A9B · Caruthersville, MOCamshaft failure. Lndd in soybean fld.Accident 19740703034119APiper PA25235 · Kenmare, NDStruck post with wing during swath run. Dumped load and returned to arpt.
Query with SQL
duckdb -csv -c "SELECT report_number, event_date, event_type, city, state, aircraft_make, aircraft_model, aircraft_damage, fatal_injuries, n_number
FROM 'https://openairdocs.org/data/latest/faa_incident_report.parquet'
WHERE engine_model_code IN ('42337')
ORDER BY event_date DESC, report_number DESC"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT report_number, event_date, event_type, city, state, aircraft_make, aircraft_model, aircraft_damage, fatal_injuries, n_number
FROM 'https://openairdocs.org/data/latest/faa_incident_report.parquet'
WHERE engine_model_code IN ('42337')
ORDER BY event_date DESC, report_number DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Service difficulty reports · 9
SDR CA190211006Capacitor · failed(CAN) MAGNETO RECEIVED FOR OVERHAUL. DEFECT FOUND DURING DISASSEMBLY. MOUNTING TAB SPOT WELDS DETACHED FROM CAPACITOR HOUSING.SDR 2006FA0000630Contact · brokenMAG FAILED IN FLIGHT, UPON INSPECTION POINTS WERE FOUND TO BE BROKEN WITH 44 HOURS TT ON THE POINTS. THE SPRING PORTION WAS BROKEN DUE TO A DEFECT IN THE STAMPING WHICH SET UP A STRESS POINT AT THE ATTACH SCREW. RECOMMEND MFG CONTACT ASSY BE INSPECTED FOR PRSDR CA060427002Connecting Rod · galled(CAN) CONNECTING RODS REMOVED FROM ENGINE AT 192.0HRS DUE TO PROP STRIKE. RODS INSPECTED IAW SB439A, AND ALL 6 RODS HAD FRETTING AND GALLING ON THE CONNECTING ROD BEARING BORE SURFACE. THE RODS WERE REPAIRED AND RETURNED TO SERVICE. THE PREVIOUS OVERHAUL RECORSDR 2003FA0000602Impulse Coupling · failedFAILURE OF SLICK 6351, S/N 00120999, MAGNETO. INSTALLATION DATE 7/15/01; TIME IN SERVICE SINCE NEW - 442 HRS. INSTALLED ON PIPER PAWNEE PA-25-235 AIRCRAFT; LYC O-540-B2B5 (I BELIEVE). IT WAS 235 HP. MODEL. FAILURE DATE 5/19/03. THE NOTED MAGNETO FAILED DURINGSDR 20000814SH003Gasket · inadequateTHIS AIRCRAFT HAS THE SAME AIR FILTER AND LANDING LIGHT ASSY AS THE PA28140 150-150 WITH BAD GASKETS. SUBMITTER FEELS AD96-10-01-R1 SHOULD APPLY. (X)SDR AU971465Trim Tab · cracked(AUS) STABILATOR TRIM TABS CRACKED AT INBOARD END ADJACENT TO THE ACTUATING ARM ATTACHMENT. CRACKING EVIDENT IN SKIN PANELS AND INBOARD RIB.SDR 96ZZZX6098Rod Bolt · strippedROD BOLT APPEARS TO BE TOO SOFT. THREADS STRIPPED CAUSING NR 4 CONNECTING ROD CAP TO COME LOOSE MAKING CONTACT WITH CASE AND NR 3 PISTON. THIS CAUSED MAJOR DAMAGE TO ENGINE.SDR AU960656Condenser · faulty(AUS) MAGNETO CONDENSER SEPARATED FROM MOUNTING LUG - PIGTAIL BROKEN - POINTS BURNTSDR AU960437Wheel · broken(AUS) MAIN WHEEL FLANGE FAILED AND BROKE AWAY DURING TYRE INFLATION - DYE PENETRANT CHECK HAD FOUND NO INDICATION OF CRACKING - PIECEOF FLANGE BROKEN AWAY WAS APPROXIMATELY 100MM (4IN) - SUSPECT A CRACK APPROXIMATELY 76.2MM (3IN) LONG HAD EXISTED FOR SOME TI
Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE engine_model_key = 'O540B2B5' ORDER BY difficulty_date DESC"
Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE engine_model_key = 'O540B2B5' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
STCs that may be installed · 44
Approved for this engine model: the STC’s model list names it on its data sheet, or a series that includes it. The registry doesn’t record which STCs an aircraft has.
STC SE04651CHTo allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22STC SE00825WIInstallation of Specialty Products Spin-on oil filter on Lycoming Engines.STC SE2932SWInstall carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive.
See all 44 STCsQuery with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
FROM (
SELECT stc_number, min(matched_model) AS matched_model
FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet'
WHERE engine_model_code IN ('42337')
GROUP BY stc_number
) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
ORDER BY s.status = 'Current' DESC, s.status_date DESC, s.stc_number"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
FROM (
SELECT stc_number, min(matched_model) AS matched_model
FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet'
WHERE engine_model_code IN ('42337')
GROUP BY stc_number
) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
ORDER BY s.status = 'Current' DESC, s.status_date DESC, s.stc_numberRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.