# Service difficulty reports: Lycoming IO-360-B4A

A list on [Lycoming IO-360-B4A](https://openairdocs.org/engine/lycoming-io-360-b4a.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 2 · 65 reports

- [SDR 2026FA0000900](https://openairdocs.org/sdr/2026FA0000900.md): Bolt · broken · Oct 5, 2026 · N542CW · Piper PA28181 · Fuel Controlling System
  > FUEL SERVO DIAPHRAGM BOLT BROKE. CAUSED ENGINE RPM LOSS AND SHUTDOWN IN FLIGHT.
- [SDR 2026FA0000098](https://openairdocs.org/sdr/2026FA0000098.md): Fuel Line · broken · Feb 6, 2026 · N776N · Piper PA28181 · Engine Fuel Distribution
  > PILOT REPORTED POWER LOSS AND ENGINE ROUGHNESS. UPON INSPECTION, FOUND #1 INJECTOR LINE BROKEN AT FERRULE AT INJECTOR NOZZLE. ENGINE HAS 1653.4 HOURS SINCE FACTORY OVERHAUL AND 33.0 HOURS SINCE LAST INSPECTION IN ACCORDANCE WITH AD 2015-19-07.
- [SDR 2025FA0000767](https://openairdocs.org/sdr/2025FA0000767.md): Air Box · cracked · Nov 19, 2025 · N654FT · Piper PA28181 · Engine Air Intake System
  > AIRBOX CRACKED, FOUND DURING SCHEDULED INSPECTION
- [SDR 2025FA0000766](https://openairdocs.org/sdr/2025FA0000766.md): Air Box · cracked · Nov 18, 2025 · N653FT · Piper PA28181 · Engine Air Intake System
  > AIRBOX CRACKED, FOUND DURING SCHEDULED INSPECTION
- [SDR 2025FA0000719](https://openairdocs.org/sdr/2025FA0000719.md): Bracket · cracked · Oct 15, 2025 · N661FT · Piper PA28181 · Fuselage Miscellaneous Structure
  > FUEL FLOW TRANSDUCER BRACKET FOUND TO HAVE SIGNIFICANT CRACK.
- [SDR 2025FA0000711](https://openairdocs.org/sdr/2025FA0000711.md): Attach Bracket · broken · Oct 14, 2025 · N653FT · Piper PA28181 · Fuselage Main, Attach Fittings
  > FUEL FLOW TRANSDUCER BRACKET HAS DEVELOPED MAJOR CRACK ON THE BOTTOM SIDE OF THE BRACKET.
- [SDR 2025FA0000712](https://openairdocs.org/sdr/2025FA0000712.md): Bracket · broken · Oct 14, 2025 · N659FT · Piper PA28181 · Fuselage Main, Attach Fittings
  > FUEL FLOW TRANSDUCER BRACKET HAS DEVELOPED MAJOR CRACK ON THE BOTTOM SIDE OF THE BRACKET.
- [SDR 2025FA0000697](https://openairdocs.org/sdr/2025FA0000697.md): Air Box · cracked · Sep 18, 2025 · N851AA · Piper PA28181 · Engine Air Intake System
  > AIRBOX SEALS DEGRADED OR MISSING. CRACKS DISCOVERED IN AIRBOX ASSEMBLY
- [SDR 2025FA0000074](https://openairdocs.org/sdr/2025FA0000074.md): Fuel Control · defective · Dec 31, 2024 · N520AF · Piper PA28181 · Fuel Controlling System
  > TEMPORARY RPM LOSS IN FLIGHT. FUEL CONTROL WAS SENT BACK TO MANUFACTURER FOR EVALUATION, AND INTERNAL DEFECT WAS FOUND. FUEL CONTROL HAD 20 HRS SINCE LAST OVERHAUL BY AVSTAR, WORK ORDER # 62670003.
- [SDR 2024FA0000812](https://openairdocs.org/sdr/2024FA0000812.md): Fuel Control · fouled · Nov 1, 2024 · N274M · Piper PA28181 · Fuel Control/Reciprocating Engines
  > THE ENGINE QUITS AT IDLE AND APPEARS TO BE DUE TO AN OVERLY RICH SETTING. THIS LATEST FAILURE THE FUEL SERVO WAS FOUND OUT OF MIXTURE ADJUSTMENT. THIS IS THE 3RD TIME FOR THIS FUEL SERVO UNIT AFTER BEING OVERHAULED TWICE BY THE MANUFACTURER. IT WAS INSTALLED C
- [SDR 2024FA0000788](https://openairdocs.org/sdr/2024FA0000788.md): Fuel Line · broken · Oct 24, 2024 · N771ND · Piper PA28181 · Engine Fuel Distribution
  > FUEL INJECTOR LINE FAILED DIRECTLY AFTER THE FERRULE ON THE NOZZLE END OF THE LINE. THE LINE BROKE CLEANLY.
- [SDR 2024FA0000789](https://openairdocs.org/sdr/2024FA0000789.md): Fuel Line · broken · Oct 24, 2024 · N706ND · Piper PA28181 · Engine Fuel Distribution
  > FUEL INJECTOR LINE FAILED DIRECTLY AFTER THE FERRULE ON THE NOZZLE END OF THE LINE. THE LINE BROKE CLEANLY.
- [SDR 2024FA0000752](https://openairdocs.org/sdr/2024FA0000752.md): Tube · broken · Oct 3, 2024 · N8581A · Piper PA25 · Engine (Reciprocating)
  > ENGINE EXPERIENCED ROUGHNESS AND POWER REDUCTION DURING FLIGHT, BUT LANDED WITHOUT FURTHER INCIDENT. INSPECTION FOUND THAT THE FUEL INJECTION LINE CONNECTING THE FLOW DIVIDER TO THE INJECTOR NOZZLE WAS BROKEN ON #1 CYLINDER. THE BREAK OCCURRED AT THE BRAZED/
- [SDR 2024FA0000778](https://openairdocs.org/sdr/2024FA0000778.md): Servo · defective · Sep 17, 2024 · N409CA · Piper PA28181 · Fuel Control/Reciprocating Engines
  > NOTED THAT THE FUEL INJECTOR SERVO WOULD NOT HOLD AN IDLE MIXTURE SETTING. MIXTURE SETTING WOULD NEED TO BE ADJUSTED FREQUENTLY. MIXTURE SETTING WAS NOTED TO CHANGE FROM BEGINNING TO END OF A FLIGHT. MIXTURE CONTROL SETTING KNOB ON THE FUEL INJECTOR SERVO WOUL
- [SDR 2024FA0000628](https://openairdocs.org/sdr/2024FA0000628.md): Nut · missing · Aug 15, 2024 · N288BL · Piper PA28181 · Reciprocating Engine Power Section
  > FORWARD MOST THROUGH CASE BOLT BEHIND CRANKSHAFT SEAL AND #1 MAIN BEARING, TOP STUD AND NUT MISSING. BOTTOM BOLT AND NUT LOOSE. LYCOMING WANTED ENGINE BACK IN CASE MAIN BEARING SPUN.
- [SDR 2024FA0000290](https://openairdocs.org/sdr/2024FA0000290.md): Magneto · failed · Apr 4, 2024 · N787TF · Piper PA28181 · Magneto/Distributor
  > REPORTED ENGINE ROUGHNESS MULTIPLE LIMOS. EITHER COULD NOT DUPLICATE ISSUE OR CLEANED AND GAPPED SPARK PLUGS AND ISSUE APPEARED TO GO AWAY. THO ROUGH RUNNING PROBLEM EVENTUALLY CAMO BACK. MECHANIC DECIDED TO PULL MAG AND INTERNALLY INSPECT. FOUND COIL WEDGE PI
- [SDR 2024FA0000272](https://openairdocs.org/sdr/2024FA0000272.md): Servo · faulted · Apr 2, 2024 · N349BG · Piper PA28181 · Fuel Controlling System
  > DURING MY APPROACH TO LAND AT KILN WHEN I WENT THROTTLE IDLE, THE LOWEST MY ENGINE RPM WENT WAS 1500RPM. I DECIDED NOT TO LAND, CANCELED MY APPROACH, AND WENT DIRECTLY BACK TO BACK TO 1G0. I WAS IN CONTACT WITH TOL ATC AND THEY CONVEYED INSTRUCTIONS FROM MY CH
- [SDR 2024FA0000234](https://openairdocs.org/sdr/2024FA0000234.md): Impulse Coupling · loose · Mar 19, 2024 · N765ND · Piper PA28181 · Magneto/Distributor
  > MAGNETO FOUND TO HAVE A LOOSE IMPULSE COUPLING STOP PIN. THERE IS A SERVICE BULLETIN SB1-19A THAT ADDRESSES THIS BUT IT IS FOR SERIAL NUMBER MAGNETOS OLDER THAN SN#18050664. THIS IS OUTSIDE OF THAT GROUP AND THE PROBLEM SHOULD HAVE BEEN CORRECT BY THIS SN#.
- [SDR 2023FA0000726](https://openairdocs.org/sdr/2023FA0000726.md): Cylinder · abnormal · Nov 3, 2023 · Piper PA28181 · Reciprocating Engine Cylinder Section
  > THE UNIVERSITY OF NORTH DAKOTA SWITCHED TO UL94 FUEL ON JUNE 23, 2023. FROM JUNE 23 TO OCTOBER 27, 2023, WE USED 386,778 GALLONS OF UL94 ACCUMULATING 46,600 FLIGHT HOURS, AN AVERAGE OF 463 HOURS PER AIRCRAFT. ON AUGUST 26, 2023 WE HAD AN AIRCRAFT WITH A ROUGH
- [SDR 2023FA0000470](https://openairdocs.org/sdr/2023FA0000470.md): Exhaust Valve · stuck · Aug 25, 2023 · N292WC · Piper PA28181 · Engine (Reciprocating)
  > DURING DEPARTURE AIRCRAFT ENGINE SUDDENLY LOST SIGNIFICANT POWER. THE ENGINE WAS RUNNING ROUGH AND ABNORMAL VIBRATION/SOUND WAS ALSO PRESENT. THE CAUSE OF THE POWER LOSS WAS FOUND TO BE A STUCK EXHAUST VALVE ON CYLINDER #4 WHICH RESULTED IN THE EXHAUST VALVE P
- [SDR 2023FA0000496](https://openairdocs.org/sdr/2023FA0000496.md): Impulse Coupling · loose · Aug 23, 2023 · N256Z · Magneto/Distributor
  > FOUND MAGNETO IMPULSE COUPLING RIVETS LOOSE AND REPLACED WITH NEW IMPULSE COUPLING.
- [SDR 2023FA0000554](https://openairdocs.org/sdr/2023FA0000554.md): Probe · failed · Aug 4, 2023 · N892D · Engine EGT/TIT Indicating System
  > EGT PROBE P/N 8655 HAS NO CONTINUITY.
- [SDR 2023FA0000469](https://openairdocs.org/sdr/2023FA0000469.md): Connector · broken · Jul 28, 2023 · N291WC · Piper PA28181 · Electrical Power System Wiring
  > RECEIVED ALTERNATOR FAILURE ANNUNCIATION ACCOMPANIED BY NO ALTERNATOR AMPS AND SMELL OF BURNING ELECTRICAL WHILE ENROUTE CRUISE. ALTERNATOR WAS DEACTIVATED. CAUSE OF FAILURE WAS THE RING TERMINAL CONNECTOR TO ALTERNATOR HAD BROKEN. ARCING BURNED INSULATION AND
- [SDR 2023FA0000375](https://openairdocs.org/sdr/2023FA0000375.md): Fuel Line · broken · Jul 19, 2023 · N348MK · Piper PA28181 · Engine Fuel Distribution
  > CYLINDER 1 FUEL INJECTION LINE BROKE AT FUEL INJECTOR
- [SDR 2023FA0000317](https://openairdocs.org/sdr/2023FA0000317.md): Grommet · excess play · Jun 15, 2023 · N229LM · Piper PA28181 · Engine Air Intake System
  > THE SILICONE GROMMET P/N 463-544 USED ON AIR BOX P/N 28P71A007-001 IS WEARING ON THE METAL STRUCTURE OF THE AIR BOX CAUSING EXCESSIVE PLAY. THIS ALLOWS THE ALTERNATE AIR VALVE TO MOVE INSIDE OF THE AIR BOX CAUSING DAMAGE TO THE AIR BOX AND VALVE. THIS ALSO IS
- [SDR 2023FA0000299](https://openairdocs.org/sdr/2023FA0000299.md): Grommet · excess play · Jun 5, 2023 · N226Z · Piper PA28181 · Engine Air Intake System
  > THE SILICONE GROMMET P/N 463-544 USED ON AIR BOX P/N 28P71A007-001 IS WEARING ON THE METAL STRUCTURE OF THE AIR BOX CAUSING EXCESSIVE PLAY. THIS ALLOWS THE ALTERNATE AIR VALVE TO MOVE INSIDE OF THE AIR BOX CAUSING DAMAGE TO THE AIR BOX AND VALVE. THIS ALSO IS
- [SDR 2023FA0000190](https://openairdocs.org/sdr/2023FA0000190.md): Magneto · failed · Apr 3, 2023 · N347MK · Piper PA28181 · Ignition System
  > PILOT REPORTED MAG FAILURE, LEFT MAG DROPPED 600 RPM. WHEN TAXING BACK TO RAMP, HIGH PITCHED HUMMING OCCURRED, GOT LOUDER WITH HIGHER RPM. REMOVED RIGHT MAGNETO AND DISCOVERED THAT THE MAGNETO IMPULSE COUPLING RIVET FAILED AND MAGNETO SEIZED. THERE WAS DAMAGE
- [SDR 2022FA0000742](https://openairdocs.org/sdr/2022FA0000742.md): Nozzle · contaminated · Dec 6, 2022 · N892DL · Piper PA28181 · Fuel Injector Nozzle
  > ON CLIMB OUT THE AIRPLANE LOST PARTIAL POWER AND HAD REDUCED RPM. THE PILOT MADE A SAFE LANDING WITHOUT INCIDENT. UPON EVALUATION OUR MAINTENANCE TEAM FOUND A ROUGH RUNNING ENGINE AND SUSPECTED THE #2 CYLINDER WAS NOT FIRING BASED ON THE CHT. AFTER CHECK
- [SDR 2022FA0000743](https://openairdocs.org/sdr/2022FA0000743.md): Nozzle · faulted · Dec 6, 2022 · N892DL · Piper PA28181 · Fuel Injector Nozzle
  > ON CLIMB OUT THE AIRPLANE LOST PARTIAL POWER AND HAD REDUCED RPM. THE PILOT MADE A SAFE LANDING WITHOUT INCIDENT. UPON EVALUATION OUR MAINTENANCE TEAM FOUND A ROUGH RUNNING ENGINE AND SUSPECTED THE #2 CYLINDER WAS NOT FIRING BASED ON THE CHT. AFTER CHECK
- [SDR LF1R2022111600698](https://openairdocs.org/sdr/LF1R2022111600698.md): Magneto · contaminated · Nov 16, 2022 · N228KH · Piper PA28181 · Magneto/Distributor
  > OWNER REPORTED A PROBLEM WHEN PERFORMING A PRE TAKEOFF MAGNETO RPM CHECK. WHEN RT MAGNETO SELECTED TO OFF, ENGINE RPM'S DROPPED SIGNIFICANTLY AND ENGINE OPERATION WAS ROUGH. CHECKED SPARK PLUGS & HARNESSES DID NOT PRODUCE ANY DISCREPANCY. MAGNETO TO ENGINE TI
- [SDR 2022FA0000713](https://openairdocs.org/sdr/2022FA0000713.md): Impulse Coupling · loose · Oct 19, 2022 · N221EF · Magneto/Distributor
  > SLICK MAG P/N 4373, S.N. 18060338 FOUND LOOSE RIVETS ON IMPULSE COUPLING DURING INSPECTION, REPLACED IMPULSE COUPLING WITH NEW.
- [SDR 2022FA0000715](https://openairdocs.org/sdr/2022FA0000715.md): Impulse Coupling · loose · Oct 14, 2022 · N223GH · Magneto/Distributor
  > SLICK MAG P/N 4373, S.N. 21110329 FOUND LOOSE RIVETS ON IMPULSE COUPLING DURING INSPECTION, REPLACED IMPULSE COUPLING WITH NEW.
- [SDR DALA2022101300601](https://openairdocs.org/sdr/DALA2022101300601.md): Rivet · worn · Oct 13, 2022 · N259CB · Piper PA28181 · Magneto/Distributor
  > RIGHT MAGNETO REJECTED AS PAWL RIVETS WERE EXTREMELY WORN. THE PAWL RIVETS CONTINUALLY STRUCK THE HOUSING OF THE MAGNETO, SHAVING OFF METAL, AND CONTAMINATING THE ENGINE WITH NON-FERROUS METAL. RECOMMEND TO INSPECT THE METOLOGY OF THE RIVETS FOR CORRECT TEMPER
- [SDR 2022FA0000714](https://openairdocs.org/sdr/2022FA0000714.md): Impulse Coupling · loose · Oct 11, 2022 · N225KL · Magneto/Distributor
  > SLICK MAG P/N 4373, S.N. 21110296 FOUND LOOSE RIVETS ON IMPULSE COUPLING DURING INSPECTION, REPLACED IMPULSE COUPLING WITH NEW.
- [SDR 2022FA0000712](https://openairdocs.org/sdr/2022FA0000712.md): Impulse Coupling · loose · Oct 7, 2022 · N229AB · Magneto/Distributor
  > SLICK MAG P/N 4373, S.N. 21110236 FOUND LOOSE RIVETS ON IMPULSE COUPLING DURING INSPECTION, REPLACED IMPULSE COUPLING WITH NEW.
- [SDR 2022FA0000717](https://openairdocs.org/sdr/2022FA0000717.md): Impulse Coupling · loose · Sep 27, 2022 · N220CE · Magneto/Distributor
  > SLICK MAG P/N 4373, S.N. 19090383 FOUND LOOSE RIVETS ON IMPULSE COUPLING DURING INSPECTION, REPLACED IMPULSE COUPLING WITH NEW.
- [SDR 2022FA0000716](https://openairdocs.org/sdr/2022FA0000716.md): Impulse Coupling · loose · Sep 23, 2022 · N222MN · Magneto/Distributor
  > SLICK MAG P/N 4373, S.N. 21091310 FOUND LOOSE RIVETS ON IMPULSE COUPLING DURING INSPECTION, REPLACED IMPULSE COUPLING WITH NEW.
- [SDR 2022FA0000718](https://openairdocs.org/sdr/2022FA0000718.md): Impulse Coupling · loose · Sep 15, 2022 · N228QR · Magneto/Distributor
  > SLICK MAG P/N 4373, S.N. 21110241 FOUND LOOSE RIVETS ON IMPULSE COUPLING DURING INSPECTION, REPLACED IMPULSE COUPLING WITH NEW.
- [SDR 2022FA0000497](https://openairdocs.org/sdr/2022FA0000497.md): None · none · Sep 6, 2022 · N512AF · Piper PA28181 · Brake
  > LEFT BRAKE MASTER CYLINDER HOSE ROUTED IMPROPERLY CAUSING THE LEFT RUDDER PEDAL FROM PILOT'S SEAT TO JAM IN FULL FORWARD POSITION WHEN LEFT RUDDER WAS APPLIED IN FLIGHT CAUSING THE LEFT RUDDER AND LEFT BRAKE TO BE FULLY APPLIED. PILOT DIVERTED TO PRINCETON NJ
- [SDR 2022FA0000150](https://openairdocs.org/sdr/2022FA0000150.md): None · none · Mar 9, 2022 · N358MK · Piper PA28181 · Fuel Boost Pump
  > STUDENT PILOT WAS ON A SOLO CROSS A COUNTRY FLIGHT AND ENGINE STOPPED. PILOT TURNED ON THE ELECTRIC FUEL PUMP AND ENGINE STARTED. PILOT LANDED AT NEAREST AIRPORT. REMOVED ENGINE DRIVEN ON FOUND FUEL PUMP DRIVE LEVER BROKEN AND FOUND BROKEN LEVER IN ENGINE OIL
- [SDR NI1R202111150001](https://openairdocs.org/sdr/NI1R202111150001.md): None · none · Nov 2, 2021 · N477PC · Piper PA28181 · Engine (Reciprocating)
  > DURING A TRAINING FLIGHT THE FLIGHT INSTRUCTOR AND STUDENT EXPERIENCED PARTIAL ENGINE POWER LOSS LEADING TO A COMPLETE ENGINE SHUT DOWN. AN OFF AIRPORT LANDING WAS MADE. A VISUAL INSPECTION OF THE ENGINE AND FUEL WAS MADE MADE AND NOTHING WAS FOUND THAT COULD
- [SDR 2021FA0000302](https://openairdocs.org/sdr/2021FA0000302.md): Fuel Control · malfunctioned · Oct 21, 2021 · N864PU · Piper PA28181 · Engine Fuel and Control
  > DURING FLIGHT CLIMB OUT AFTER TAKEOFF THE ENGINE EXPERIENCED A 200 RPM DECREASE DUE TO THE FUEL SERVO INCREASING THE FUEL FLOW FROM 13.0 GPH TO 16.5 GPH DUE TO AN UNDETERMINED REASON. PILOT APPLIED ALTERNATE AIR WHICH IMPROVED THE SITUATION SLIGHTLY AND AIRCRA
- [SDR 2021FA0000219](https://openairdocs.org/sdr/2021FA0000219.md): Magneto · melted · Aug 4, 2021 · N764ND · Piper PA28181 · Magneto/Distributor
  > PILOT REPORTED RPM ERRATIC BUT ENGINE WAS STEADY. LOST TACH COMPLETELY AND DECLARED EMERGENGY TO TOWER. LANDED WITH OUT INCIDENT. MAINTENANCE TROUBLESHOT AND FOUND LEFT MAGNETO TACH PICK-UP HEAVILY COATED WITH FINE DUST. MAGNETO WAS REMOVED AND DISASSEMBLED. F
- [SDR 2021FA0000067](https://openairdocs.org/sdr/2021FA0000067.md): Contact · defective · Mar 2, 2021 · N860PU · Piper PA28181 · Magneto/Distributor
  > REPLACED CONTACT ASSEMBLY PN M3081 IN MAGNETO MN 4373 WITH KELLY AEROSPACE PMA CONTACT ASSEMBLY PN A-13081 DURING MAGNETO 500-HOUR INSPECTION. WITHIN 2 HOURS AFTER RETURN TO SERVICE DURING THE PREFLIGHT RUN UP CHECKS, THE MAGNETO CHECK INDICATED A ROUGH RUNNIN
- [SDR B4VR202028043](https://openairdocs.org/sdr/B4VR202028043.md): Stringer · cracked · Oct 16, 2020 · N28043 · Piper PA28181 · Fuselage Main, Longeron/Stringer
  > DURING SCHEDULED MAINTENANCE, OUR TECHNICIANS NOTICED SMALL CRACKS ON MANY OF THE AIRCRAFT’S STRINGERS. THEY APPEAR ON THE STRINGERS WITH DIMPLING ON THEM. DIMPLING WAS DONE TO ACCOMMODATE FLUSH RIVETS ON THE EXTERIOR OF THE AIRCRAFT SKIN. THE CRACKS ARE BE
- [SDR B4VR202028011](https://openairdocs.org/sdr/B4VR202028011.md): Stringer · cracked · Oct 15, 2020 · N28011 · Piper PA28181 · Fuselage Main, Longeron/Stringer
  > DURING SCHEDULED MAINTENANCE, OUR TECHNICIANS NOTICED SMALL CRACKS ON MANY OF THE AIRCRAFT’S STRINGERS. THEY APPEAR ON THE STRINGERS WITH DIMPLING ON THEM. DIMPLING WAS DONE TO ACCOMMODATE FLUSH RIVETS ON THE EXTERIOR OF THE AIRCRAFT SKIN. THE CRACKS ARE BE
- [SDR B4VR202028015](https://openairdocs.org/sdr/B4VR202028015.md): Stringer · cracked · Oct 15, 2020 · N28015 · Piper PA28181 · Fuselage Main, Longeron/Stringer
  > DURING SCHEDULED MAINTENANCE, OUR TECHNICIANS NOTICED SMALL CRACKS ON MANY OF THE AIRCRAFT’S STRINGERS. THEY APPEAR ON THE STRINGERS WITH DIMPLING ON THEM. DIMPLING WAS DONE TO ACCOMMODATE FLUSH RIVETS ON THE EXTERIOR OF THE AIRCRAFT SKIN. THE CRACKS ARE BE
- [SDR B4VR202028017](https://openairdocs.org/sdr/B4VR202028017.md): Stringer · cracked · Oct 15, 2020 · N28017 · Piper PA28181 · Fuselage Main, Longeron/Stringer
  > DURING SCHEDULED MAINTENANCE, OUR TECHNICIANS NOTICED SMALL CRACKS ON MANY OF THE AIRCRAFT’S STRINGERS. THEY APPEAR ON THE STRINGERS WITH DIMPLING ON THEM. DIMPLING WAS DONE TO ACCOMMODATE FLUSH RIVETS ON THE EXTERIOR OF THE AIRCRAFT SKIN. THE CRACKS ARE BE
- [SDR B4VR202028020](https://openairdocs.org/sdr/B4VR202028020.md): Stringer · cracked · Oct 15, 2020 · N28020 · Piper PA28181 · Fuselage Main, Longeron/Stringer
  > DURING SCHEDULED MAINTENANCE, OUR TECHNICIANS NOTICED SMALL CRACKS ON MANY OF THE AIRCRAFT’S STRINGERS. THEY APPEAR ON THE STRINGERS WITH DIMPLING ON THEM. DIMPLING WAS DONE TO ACCOMMODATE FLUSH RIVETS ON THE EXTERIOR OF THE AIRCRAFT SKIN. THE CRACKS ARE BEL
- [SDR B4VR202028027](https://openairdocs.org/sdr/B4VR202028027.md): Stringer · cracked · Oct 15, 2020 · N28027 · Piper PA28181 · Fuselage Main, Longeron/Stringer
  > DURING SCHEDULED MAINTENANCE, OUR TECHNICIANS NOTICED SMALL CRACKS ON MANY OF THE AIRCRAFT’S STRINGERS. THEY APPEAR ON THE STRINGERS WITH DIMPLING ON THEM. DIMPLING WAS DONE TO ACCOMMODATE FLUSH RIVETS ON THE EXTERIOR OF THE AIRCRAFT SKIN. THE CRACKS ARE

Next page: https://openairdocs.org/engine/lycoming-io-360-b4a/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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 = 'IO360B4A'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/lycoming-io-360-b4a/reports

---
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