# JASC 3442: Weather Radar System

- Type: JASC system/component code (FAA)
- ATA chapter: 34 Navigation
- Title in the code table: WEATHER RADAR SYSTEM
- Service difficulty reports: 3,442
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=39
- Page: https://openairdocs.org/jasc/3442

## What it covers

The system components and parts which transmits and receives a signal independent of ground facilities to determine the relative position of adverse weather cells. Typical parts are transceiver, antenna, control panel for the weather avoidance radar system, accessory synchronizers, servo amplifier, scope, etc.

## Service difficulty reports (3,442, newest 50)

- [SDR DALA2026101905731](https://openairdocs.org/sdr/DALA2026101905731), Oct 16, 2026: Airbus A321213. TRANSCEIVER. INOPERATIVE. DIV - TO ATL DUE TO WEATHER RADAR INOP. UNABLE TO CONTINUE THROUGH ICING CONDITIONS. REPLACED WEATHER RADAR TRANSCEIVER  (N336DX)
- [SDR CALA2026100720198](https://openairdocs.org/sdr/CALA2026100720198), Oct 5, 2026: Boeing 7378. PROCESSOR. FAULTED. WX RADAR NOT PAINTING ON LEFT HALF OF SCREEN. RIGHT HALF OF SCREEN PAINTING EXTREME WEATHER THAT DOES NOT EXIST. DEBRIEF (N17320)
- [SDR CALA2026100520098](https://openairdocs.org/sdr/CALA2026100520098), Oct 2, 2026: Boeing 78710. TRANSCEIVER. FAULTY. WEATHER RADAR SYS ADVISORY WXR FUNCTIONS HAVE FAILED OR PARTIALLY FAILED ON BOTH LEFT AND R IGHT SIDES OR MANUALY SELECT (N12003)
- [SDR UIEA2026100100935](https://openairdocs.org/sdr/UIEA2026100100935), Oct 1, 2026: Boeing 7673Y0. DRIVE ASSY. FAULTED. ALT DISAGREE AT FL 230-270. FO AND CAPT ALTIMETER +/- 500; BELOW 10,000 NORMAL. AIRSPEED DISAGREE, CAPT & STANDBY AGREE  (N642GT)
- [SDR AALA202610026587](https://openairdocs.org/sdr/AALA202610026587), Sep 29, 2026: Boeing 737823. TRANSCEIVER. INTERMITTENT. AIRCRAFT WAS GROUNDED: URING CRUISE FLIGHT, WEATHER RADAR WAS VERY INTERMITTENT AND SPORADIC WHEN SHOWING RETURNS ON BOT (N338PK)
- [SDR CALA2026092119596](https://openairdocs.org/sdr/CALA2026092119596), Sep 17, 2026: Airbus A320232. TRANSCEIVER. FAULTED. ELECTRICAL BURNING ODOR AFTER LANDINGPICTURE UPDATE. BRIEFED FLIGHT CREW. CREW STATED A BURNING ODOR WAS PRESENT IN FLIG (N438UA)
- [SDR ASAA2026091266826](https://openairdocs.org/sdr/ASAA2026091266826), Sep 12, 2026: Airbus A330343. TRANSCEIVER. FAULTED. AIR TURN BACK DUE TO ECAM "NAV PRED W/S DET FAULT. GROUNDED - YES. REFER TO LOG PAGE 100235155-1 FOR RESOLUTION. REMOVED (N5827K)
- [SDR CALA2026091419417](https://openairdocs.org/sdr/CALA2026091419417), Sep 10, 2026: Boeing 767322. TRANSCEIVER. FAULTY. WX RADAR FAIL BOTH SIDES F2 CB RESET PER TOMC NO HELP R & R WX RADAR R/T DUE TO FAILURE & SHOP HISTORY, SELF TEST AND OP (N654UA)
- [SDR CALA2026091119374](https://openairdocs.org/sdr/CALA2026091119374), Sep 9, 2026: Boeing 767322. ANTENNA. FAULTED. WEATHER RADAR MAKING WRONG INDICATIONS ON DEPARTURE. FOLLOWED BY A COMPLETE WXR FAILURE. PERFORMED WEATHER RADAR ANTENNA (N654UA)
- [SDR YENA2026090900738](https://openairdocs.org/sdr/YENA2026090900738), Sep 9, 2026: Airbus A320232. RADAR. FAILED. FLT 1449, FLL-STI (RTF FLL). ON CLIMBOUT, PASSING FL200 WITH LT GREEN RADAR RETURNS, HAD A LIGHTENING STRIKE ON THE NOSE (N516JB)
- [SDR CALA2026082418865](https://openairdocs.org/sdr/CALA2026082418865), Aug 20, 2026: Boeing 737824. RADAR. FALSE INDICATION. PWS FAILED, FOLLOWED FIM 34-43, TASK 815, PERFORMED WEATHER RADAR SYSTEM BITE PROCEDURE IAW FIM 34-43 TASK 801, WEATHER  (N73251)
- [SDR AALA202608178711](https://openairdocs.org/sdr/AALA202608178711), Aug 13, 2026: Boeing 7378. RADAR. FAILED. AIRCRAFT WAS GROUNDED: WEATHER RADAR FAILED IN FLIGHT I HAD WXR FAILED AND PXR FAILED AROUND 31000. DECESION MADE TO RET (N319VF)
- [SDR HNAA2026081300661](https://openairdocs.org/sdr/HNAA2026081300661), Aug 12, 2026: Emb EMB145LR. RADAR. ABNORMAL. WX RADAR FAILED IN FLIGHT. FACT 12AUG26 02:49 PHL R+R WX RADAR IAW AMM 34-42-01. OPS CHECK GOOD IAW AMM 34-42-00. A/C OK (N679AE)
- [SDR CALA2026081118462](https://openairdocs.org/sdr/CALA2026081118462), Aug 9, 2026: Boeing 757224. TRANSCEIVER. FAULTED. WEATHER RADAR SYS EICAS, THE WEATHER RADAR INFORMATION IS NOT DISPLAYED WHEN ACTIVATED. TESTS PROPERLY ON GROUND & IN FL (N34131)
- [SDR YENA2026080500650](https://openairdocs.org/sdr/YENA2026080500650), Aug 4, 2026: Airbus A321271NX. CONTROL UNIT. FAILED. FLT 1926, LGW-BOS. (ETOPS) WXR/PWS PULL-UP SAFETY LOCK TOGGLE SWITCH IN INOP SWITCH SHOULD REQUIRED PULL TO GO FROM '1'  (N2142J)
- [SDR HNAA2026080300641](https://openairdocs.org/sdr/HNAA2026080300641), Aug 1, 2026: Emb EMB145LR. RADAR. FAILED. WING A/I FAIL MSG APPEARED ON EICAS IN ICING CONDITIONS, WING ANTI-ICING SYSTEM. OPS CHECK GOOD IAW AMM 30-00-00. A/C OK (N690AE)
- [SDR CALA2026072918089](https://openairdocs.org/sdr/CALA2026072918089), Jul 27, 2026: Boeing 757224. DRIVE UNIT. FAULTED. DIVERT TO DEN FOR WX FAIL. REPLACED DRIVE MOTOR ASSY. OPS CHECK OK. REF AMM 34-43-05/401. REPLACED DRIVE MOTOR ASSY. OPS (N14115)
- [SDR DALA2026072804374](https://openairdocs.org/sdr/DALA2026072804374), Jul 27, 2026: Airbus A350941. SWITCH. FAULTED. SHIP 3529 -DIV- TO SYD DUE TO NR 12 AFDX SWITCH FAULT WITH ASSOCIATED WXR FAULTS. REPLACED AFDX SWITCH 12 AND AESU #1. ( (N529DN)
- [SDR UIEA2026072400654](https://openairdocs.org/sdr/UIEA2026072400654), Jul 24, 2026: Boeing 74746NF. RADAR. FAULTED. RADAR INTERMITTENT AND INAUCCURATE, NOT PAINTING ANY WEATHER. PERFORMED OPERATIONAL TEST PER AMM 33-43-00/501. NO ISSUES (N454PA)
- [SDR YENA2026071600581](https://openairdocs.org/sdr/YENA2026071600581), Jul 13, 2026: Airbus A321271NX. CONTROL UNIT. FAILED. FLT # 20, LHR-JFK. (ETOPS) "HZD LIGHT ON RADAR INTERMITTENT. R & R WX RADAR CONTROL UNIT IAW AMM 34-41-12 OPS CHK GOOD A (N4022J)
- [SDR YENA2026071300559](https://openairdocs.org/sdr/YENA2026071300559), Jul 10, 2026: Airbus A321271NX. TRANSCEIVER. FAILED. FLT # 2260, MAD-BOS. (ETOPS) "WX RADAR 1 TRANSEIVER FAILURE RED WXR R/T; T/S WXR1 RTU REMOVED + REPLACED RTU 1 REF AMM 3 (N4022J)
- [SDR YENA2026070900524](https://openairdocs.org/sdr/YENA2026070900524), Jul 7, 2026: Airbus A321271NX. RADAR. INOPERATIVE. FLT # 620, SAN-BOS. (ETOPS) "WX RADAR SYSTEM #1 INOP ( WEATHER RADAR SYSTEMS )" (SUPPLEMENTAL INFORMATION TO FOLLOW). (N2105J)
- [SDR CALA2026070917641](https://openairdocs.org/sdr/CALA2026070917641), Jul 6, 2026: Airbus A321271NX. TRANSCEIVER. FAULTED. RED WXR R/T ON BOTH ND WXR HAS FAILD PERFORMED GND SCAN AND BITE TEST FOR WXR. BOTH TESTS FAILED WITH FAULT MSGS WXR RP( (N14548)
- [SDR CALA2026070817608](https://openairdocs.org/sdr/CALA2026070817608), Jul 6, 2026: Boeing 737924ER. DRIVE UNIT. FAULTED. IAW FLIGHT CREW, VIBRATION IN AIR & ON GROUND FELT IN FLT DECK & FELT IN FLIGHT CONTROLS. AIR RETURN, CREW REPORTED WXR  (N62849)
- [SDR AALA202607071555](https://openairdocs.org/sdr/AALA202607071555), Jul 5, 2026: Boeing 7878. MODULE. INOPERATIVE. AIRCRAFT WAS GROUNDED: STATUS MESSAGES: WEATHER RADAR SYS L+R,EICAS MESSAGE WEATHER RADAR SYS, BOTH RADARS INOP. DECESIO (N803AL)
- [SDR AALA202607070343](https://openairdocs.org/sdr/AALA202607070343), Jul 5, 2026: Boeing 7878. DRIVE ASSY. INOPERATIVE. AIRCRAFT WAS GROUNDED: STATUS MESSAGES: WEATHER RADAR SYS L+R,EICAS MESSAGE WEATHER RADAR SYS, BOTH RADARS INOP. DECESIO (N803AL)
- [SDR AALA202607079255](https://openairdocs.org/sdr/AALA202607079255), Jul 5, 2026: Boeing 7878. MODULE. INOPERATIVE. AIRCRAFT WAS GROUNDED: STATUS MESSAGES: WEATHER RADAR SYS L+R,EICAS MESSAGE WEATHER RADAR SYS, BOTH RADARS INOP. DECESIO (N803AL)
- [SDR AALA202607065283](https://openairdocs.org/sdr/AALA202607065283), Jul 4, 2026: Boeing 7878. PROCESSOR. FAULTED. AIRCRAFT WAS GROUNDED: STATUS MESSAGES: WEATHER RADAR SYS L+R,EICAS MESSAGE WEATHER RADAR SYS, BOTH RADARS INOP. DECESIO (N803AL)
- [SDR CALA2026070617562](https://openairdocs.org/sdr/CALA2026070617562), Jul 2, 2026: Boeing 737924ER. TRANSCEIVER. FAULTED. WXR FAIL AND PWS FAIL IN FLIGHT FOUND RADAR XCVR FAILURE DUE TO BLOWER FAN INOP. REMOVED AND REPLACED WX XCVR REF 34-43- (N61886)
- [SDR AALA202606302062](https://openairdocs.org/sdr/AALA202606302062), Jun 27, 2026: Airbus A320214. TRANSCEIVER. FAILED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO CLT DUE TO THE FLIGHT CREW REPORTING THAT  (N112US)
- [SDR CALA2026062917368](https://openairdocs.org/sdr/CALA2026062917368), Jun 24, 2026: Boeing 7378. PROCESSOR. FAULTY. WX RADAR INOP PER FIM TASK 34-41 TASK 836, REMOVED AND REPLACED WEATHER RADAR PROCESSOR PER AMM 34-41-42. PERFORMED OPS  (N27304)
- [SDR AALA202606256593](https://openairdocs.org/sdr/AALA202606256593), Jun 18, 2026: Boeing 737823. TRANSCEIVER. INOPERATIVE. AIRCRAFT WAS GROUNDED: NTERRUPTED BACK TO CLT ACCOUNT OF A WEATHER RADAR ISSUE. NO EMERGENCY DECLARED, AND THE AIRCRAFT  (N961AN)
- [SDR CALA2026061817177](https://openairdocs.org/sdr/CALA2026061817177), Jun 14, 2026: Boeing 7378. TRANSCEIVER. FAULTED. DUE TO MULTIPLE A/R FOR WEATHER RADAR FAIL AHM FAULT 34-43107 T/S PER 34-11 TASK 818 RECORD ANY FAULTS ON WXR PROCESSOR, (N17358)
- [SDR CALA2026061817175](https://openairdocs.org/sdr/CALA2026061817175), Jun 14, 2026: Boeing 7378. PROCESSOR. FAULTY. PWS FAIL AND WXR FAIL IN FLIGHT. REMOVED AND REPLACED WX RADAR PROCESSOR. OPS CHECK GOOD. IAW AMM 34-41-42 (N17358)
- [SDR CALA2026060916950](https://openairdocs.org/sdr/CALA2026060916950), Jun 7, 2026: Boeing 737824. RADAR. FAILED. WXR FAIL MESSAGE SHOWS CAPTAIN'S PWS FAIL AND WXR FAIL ON BOTH CAPTAIN AND FO SIDE. OCCURED ABOUT 20 MINUTES AFTER TAKEO (N25201)
- [SDR CALA2026060116713](https://openairdocs.org/sdr/CALA2026060116713), May 27, 2026: Boeing 737824. DRIVE UNIT. FAULTED. WXR FAIL BOTH SIDES WXR FAIL ATTN REF LP 9066608 FOR MAINTENANCE ACTION PERFORMED. LP 9066608: DUE TO HISTORY OF PWS AND (N78511)
- [SDR CALA2026052816607](https://openairdocs.org/sdr/CALA2026052816607), May 24, 2026: Boeing 777224. TRANSCEIVER. FAULTED. STATUS MSG WXR SYS. RT WXR RADER INOP. REMAINING WEATHER RADAR SYSTEM OPERATES NORMALLY. REQUESTING MEL 3443B PER TOMC R (N78001)
- [SDR DALA2026052603155](https://openairdocs.org/sdr/DALA2026052603155), May 21, 2026: Boeing 767332. DRIVE UNIT. FAILED. DIV- TO SAV DUE TO WEATHER RADAR FAULT. REPLACED WX RADAR DRIVE UNIT/ANTENNA. OPS CHECK NORMAL. (8894956) (AIRCRAFT GROU (N1605)
- [SDR DALA2026042802674](https://openairdocs.org/sdr/DALA2026042802674), Apr 26, 2026: Boeing 767332. PROCESSING UNIT. FAILED. RETURNED JFK DUE TO A WEATHER RADAR FAIL. REPLACED WEATHER RADAR PROCESSOR. OPS CHECK GOOD. (8716608) (AIRCRAFT GROUNDED (N185DN)
- [SDR CALA2026042115572](https://openairdocs.org/sdr/CALA2026042115572), Apr 19, 2026: Boeing 767424ER. ANTENNA. FAILED. DUAL WX RADAR FAIL WXR SYS STATUS MSG REPLACED CONTROL PANEL PRECAUTION. REMOVED AND REPLACED WEATHER RADAR SCANNER PEDE (N76064)
- [SDR CALA2026042115554](https://openairdocs.org/sdr/CALA2026042115554), Apr 18, 2026: Boeing 737824. BLOWER. FAILED. WX RADAR NOT WORKING. PAINTS SOLID GREEN ACROSS THE SWEEP IN ARE AS OF KNOWN TSTRMS PERFORMED FIM 34-43 TASK 802. PER CR (N17229)
- [SDR YENA2026041500398](https://openairdocs.org/sdr/YENA2026041500398), Apr 15, 2026: Airbus A321271NX. CONTROL UNIT. FAILED. FLT#2124, LAX-JFK. (ETOPS) "RADAR CONTROL PANEL HZD PUSH BUTTON ANNUNCIATOR LIGHT INOP. TURB PUSH BUTTON ANNUNCIATOR LIG (N4077J)
- [SDR AALA202604103291](https://openairdocs.org/sdr/AALA202604103291), Apr 7, 2026: Airbus A319112. TRANSCEIVER. INOPERATIVE. AIRCRAFT WAS GROUNDED: WEATHER RADAR FAILED IN FLIGHT AIRCRAFT DIVERTED TO MCO DUE TO POSSIBLE WEATHER AT MIA. LANDED WI (N733UW)
- [SDR I5PA2026033075711](https://openairdocs.org/sdr/I5PA2026033075711), Mar 30, 2026: Boeing 75729J. DRIVE UNIT. FAILED. FLIGHT MGE301, WXR FAILED. REPLACED WXR DRIVE UNIT PER AMM. (N757QM)
- [SDR DALA2026031801865](https://openairdocs.org/sdr/DALA2026031801865), Mar 16, 2026: Boeing 767332. TRANSCEIVER. INOPERATIVE. ATB- DUE TO WEATHER RADAR OPERATIVE WITH WEATHER ENROUTE. REPLACED RADAR TRANSCEIVER AND RADAR INDICATOR PER B767-300 AM (N1603)
- [SDR I5PA2026031675706](https://openairdocs.org/sdr/I5PA2026031675706), Mar 15, 2026: Boeing 75729J. TRANSCEIVER. FAULTY. FLIGHT MGE600, WXR FAIL. FOUND AND REPLACED FAULTY WXR TRANSCEIVER PER AMM. (N757QM)
- [SDR I5PA2026031275702](https://openairdocs.org/sdr/I5PA2026031275702), Mar 12, 2026: Boeing 75729J. DRIVE UNIT. INOPERATIVE. FLT. MGE502, WXR FAILED. PERFORMED OPS CHECK OF WEATHER RADAR SYSTEM. FOUND DRIVE UNIT FAILED. REPLACED DRIVE UNIT PER A (N757QM)
- [SDR YENA2026031100285](https://openairdocs.org/sdr/YENA2026031100285), Mar 10, 2026: Airbus A321271NX. CONTROL UNIT. FAILED. FLT 1408 CDG-JFK (ETOPS). HZD LIGHT ON RADAR INOP REF LP 4435463 ITEM 1 WX CTRL UNIT REMOVED AND REPLACED , ETOPS VERIFI (N4073J)
- [SDR HNAA2026030900198](https://openairdocs.org/sdr/HNAA2026030900198), Mar 7, 2026: Emb EMB145LR. CONTROL PANEL. ABNORMAL. WEATHER RADAR DISPLAYS AMBER WHEN IT SHOULD BE GREEN. FACT 07MAR26 18:37 ROA SLAVED IN A CAPTAINS WEATHER CONTROL PANEL  (N658AE)
- [SDR AALA202603071395](https://openairdocs.org/sdr/AALA202603071395), Mar 6, 2026: Airbus A320232. TRANSCEIVER. INOPERATIVE. AIRCRAFT WAS GROUNDED: 5-10 MIN AFTER TAKEOFF WEATHER RADAR STOPPED WORKING AND MESSAGE WR R/T IN RED. DECESION MADE TO  (N654AW)

All 3,442: https://openairdocs.org/jasc/3442/reports.md

## Other codes in chapter 34

- [JASC 3400](https://openairdocs.org/jasc/3400): Navigation System (692 reports)
- [JASC 3410](https://openairdocs.org/jasc/3410): Flight Environment Data (218 reports)
- [JASC 3411](https://openairdocs.org/jasc/3411): Pitot/Static System (1,586 reports)
- [JASC 3412](https://openairdocs.org/jasc/3412): Outside Air Temperature Indicator/Sensor (254 reports)
- [JASC 3413](https://openairdocs.org/jasc/3413): Rate of Climb Indicator (157 reports)
- [JASC 3414](https://openairdocs.org/jasc/3414): Airspeed/Mach Indicator (860 reports)
- [JASC 3415](https://openairdocs.org/jasc/3415): High Speed Warning (39 reports)
- [JASC 3416](https://openairdocs.org/jasc/3416): Altimeter, Barometric/Encoder (1,256 reports)
- [JASC 3417](https://openairdocs.org/jasc/3417): Air Data Computer (1,210 reports)
- [JASC 3418](https://openairdocs.org/jasc/3418): Stall Warning System (1,641 reports)
- [JASC 3420](https://openairdocs.org/jasc/3420): Attitude and Direction Data System (772 reports)
- [JASC 3421](https://openairdocs.org/jasc/3421): Attitude Gyro and Indicating System (1,142 reports)
- [JASC 3422](https://openairdocs.org/jasc/3422): Directional Gyro and Indicating System (649 reports)
- [JASC 3423](https://openairdocs.org/jasc/3423): Magnetic Compass (101 reports)
- [JASC 3424](https://openairdocs.org/jasc/3424): Turn and Bank/Rate of Turn Indicator (153 reports)
- [JASC 3425](https://openairdocs.org/jasc/3425): Integrated Flight System (1,148 reports)
- [JASC 3430](https://openairdocs.org/jasc/3430): Landing and Taxi Aids (56 reports)
- [JASC 3431](https://openairdocs.org/jasc/3431): Localizer/VOR System (129 reports)
- [JASC 3432](https://openairdocs.org/jasc/3432): Glide Slope System (66 reports)
- [JASC 3433](https://openairdocs.org/jasc/3433): Microwave Landing System (26 reports)
- [JASC 3434](https://openairdocs.org/jasc/3434): Marker Beacon System (27 reports)
- [JASC 3435](https://openairdocs.org/jasc/3435): Heads Up Display System (10 reports)
- [JASC 3436](https://openairdocs.org/jasc/3436): Wind Shear Detection System (70 reports)
- [JASC 3440](https://openairdocs.org/jasc/3440): Independent Position Determining System (261 reports)
- [JASC 3441](https://openairdocs.org/jasc/3441): Inertial Guidance System (289 reports)
- [JASC 3443](https://openairdocs.org/jasc/3443): Doppler System (110 reports)
- [JASC 3444](https://openairdocs.org/jasc/3444): Ground Proximity System (552 reports)
- [JASC 3445](https://openairdocs.org/jasc/3445): Air Collision Avoidance System (214 reports)
- [JASC 3446](https://openairdocs.org/jasc/3446): Non Radar Weather System (23 reports)
- [JASC 3450](https://openairdocs.org/jasc/3450): Dependent Position Determining System (106 reports)
- [JASC 3451](https://openairdocs.org/jasc/3451): DME/TACAN System (197 reports)
- [JASC 3452](https://openairdocs.org/jasc/3452): ATC Transponder System (624 reports)
- [JASC 3453](https://openairdocs.org/jasc/3453): Long-Range Navigation (LORAN) System (175 reports)
- [JASC 3454](https://openairdocs.org/jasc/3454): Visual Omnirange (VOR) System (317 reports)
- [JASC 3455](https://openairdocs.org/jasc/3455): Automatic Direction Finder (ADF) System (164 reports)
- [JASC 3456](https://openairdocs.org/jasc/3456): Omega Navigation System (9 reports)
- [JASC 3457](https://openairdocs.org/jasc/3457): Global Positioning System (635 reports)
- [JASC 3460](https://openairdocs.org/jasc/3460): Flight Management Computing Hardware System (4,690 reports)
- [JASC 3461](https://openairdocs.org/jasc/3461): Flight Management Computing Software System (68 reports)
- [JASC 3497](https://openairdocs.org/jasc/3497): Navigation System Wiring (269 reports)

---
From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.