TextPartly OCR
Some pages are OCR from a scan. OCR can misread letters and numbers.
Query with SQL
duckdb -csv -c "SELECT p.page, p.text_source, p.text, f.rights_holder, f.license FROM 'https://openairdocs.org/data/latest/service_document_file_page.parquet' p JOIN 'https://openairdocs.org/data/latest/service_document_file.parquet' f USING (file_sha256) WHERE p.file_sha256 = 'c1fd9397554dd768c418d4c212b87f69d0aab8c0d09d509dc7b9759877ddc9c8' ORDER BY p.page"
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 p.page, p.text_source, p.text, f.rights_holder, f.license FROM 'https://openairdocs.org/data/latest/service_document_file_page.parquet' p JOIN 'https://openairdocs.org/data/latest/service_document_file.parquet' f USING (file_sha256) WHERE p.file_sha256 = 'c1fd9397554dd768c418d4c212b87f69d0aab8c0d09d509dc7b9759877ddc9c8' ORDER BY p.page
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.
Commercial Airplanes MD90 Service Bulletin ALERT Number: MD90-30A031 Original Issue: June 02, 2017 ATA System: 3030 SUBJECT: ICE AND RAIN PROTECTION - Pitot and Static - Air Data Sensor Heat System Change Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15 CFR 300-774). An export license may be required before it is used for development, production or use by foreign persons from specific countries. The controller of this data has the individual responsibility to abide by all export laws.
9E991ECCN:
BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET Copyright © 2017 Boeing.
Unpublished Work. All Rights Reserved.
Treatment of this document and its content is governed by contract with Boeing. Rights to use this document are licensed on a per aircraft basis and such rights may not be transferable. For more information, contact The Boeing Company.
Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner, BBJ, DC-8, DC-9, DC-10, KC-10, KC-46, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8, Poseidon and Boeing liveries are all trademarks owned by The Boeing Company; and no trademark license is granted in connection with this document unless provided in writing by Boeing.
Original Issue: June 02, 2017 MD90-30A031 1 of 37
2.0
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 02, 2017 MD90-30A031 2 of 37 BOEING SERVICE BULLETIN MD90-30A031
ALERTALERT
BLANK PAGE
Table of Contents
Summary5
1. PLANNING INFORMATION9
A. Effectivity9
1. Airplanes9
2. Spares Affected11
B. Concurrent Requirements11
C. Reason11
D. Description12
E. Compliance12
F. Approval12
G. Manpower12
H. Weight and Balance Changes13
I. Electrical Load Data13
J. References14
1. Existing Data:14
2. Data Supplied with this Service Bulletin:15
3. Installation Drawings Used in the Preparation of this Service Bulletin:15
K. Publications Affected15
L. Interchangeability and Intermixability of Parts16
M. Software Accomplishment Summary16
2. MATERIAL INFORMATION17
A. Material - Price and Availability17
B. Industry Support Information17
C. Parts Necessary for Each Airplane17
1. Kits/Parts17
2. Parts and Materials Supplied by the Operator18
3. Parts Modified and Reidentified19
4. Parts Removed and Not Replaced19
D. Parts Necessary to Change Spares19
E. Special Tooling - Price and Availability19
F. Special Tooling Necessary to do this Service Bulletin19
3. ACCOMPLISHMENT INSTRUCTIONS21
A. GENERAL INFORMATION21
B. WORK INSTRUCTIONS23
FIGURE 1: ELECTRICAL/ELECTRONICS (E/E) COMPARTMENT - AFT RIGHT RADIO RACK - RELAY
AND SOCKET INSTALLATION26
FIGURE 2: ELECTRICAL/ELECTRONICS (E/E) COMPARTMENT - STA 110 RELAY PANEL AND AFT
RIGHT RADIO RACK - WIRE ROUTING28
FIGURE 3: ELECTRICAL/ELECTRONICS (E/E) COMPARTMENT - STA 110 RELAY PANEL AND AFT
RIGHT RADIO RACK - WIRING CHANGES33
APPENDIX A: PART DEMAND INTENT37
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 02, 2017 MD90-30A031 3 of 37 BOEING SERVICE BULLETIN MD90-30A031
ALERTALERT
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 02, 2017 MD90-30A031 4 of 37 BOEING SERVICE BULLETIN MD90-30A031
ALERTALERT
BLANK PAGE
Commercial Airplanes MD90 Service Bulletin ALERT SummaryNumber: MD90-30A031Original Issue: June 02, 2017 ATA System: 3030 SUBJECT: ICE AND RAIN PROTECTION - Pitot and Static - Air Data Sensor Heat System Change
THIS DOCUMENT IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH 1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS DOCUMENT TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS DOCUMENT TO THE NEW OWNER.
CONCURRENT REQUIREMENTS None.
BACKGROUND This service bulletin gives instructions to change the Air Data Heat (ADH) System. The accomplishment of this service bulletin will turn on the ADH system when the left and right fuel switches are set to the ON position. Air data sensors directly affect flight computers and flight deck instrumentation. The air data sensors have heaters to prevent blockage from ice formation in the sensor or from ice formation on the static plates. Incorrect airspeed indications can be the direct result of pitot tubes icing. Unheated Air Data sensors, mainly the pitot and static sensors, in icing conditions may result in irregular airspeed or altitude indications. If this service bulletin is not done, then failure of the Captain or First Officer to activate the ADH System can result in unsafe flight conditions.
One operator reported that during takeoff, both the Captain's and First Officer's airspeed indications froze at 80 knots. The captain made the decision to continue the takeoff which resulted in an overboost of both engines.
The flight was diverted to an alternate airport. A review of the weather at the departure airport indicated an Outside Air Temperature (OAT) of 25 degrees Fahrenheit and wind at approximately 20 knots in light snow. The airplane had been waiting in this weather condition for about two hours for de-icing before takeoff. A review of the flight data recorder from this event indicated the airspeed became irregular and could not be read during takeoff until the airplane reached 6000 feet Above Ground Level (AGL). The recorded data also indicated that the pitot tube was possibly blocked with ice.
Boeing Service Related Problem (SRP) MD90-SRP-30-0053 is related to this service bulletin.
Boeing Fleet Team Digest (FTD) MD-90 FTD 30-15001 is related to this service bulletin.
This table is provided to operators for planning purposes only. Refer to the applicable sections for more information.
ReferenceAffectedPlanning Data Paragraph 1.A.2., Spares AffectedNoSpares Affected Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 02, 2017 MD90-30A031 5 of 37
ReferenceAffectedPlanning Data Paragraph 1.E., Compliance and Paragraph
1.F., Approval YesAD Related Paragraph 1.H., Weight and Balance ChangesYesWeight and Balance Change Paragraph 1.I., Electrical Load DataYesElectrical Load Changed Paragraph 1.K., Publications AffectedYesPublications Affected Paragraph 1.K., Publications AffectedYesAirplane Flight Operations Affected (Flight Crew Operations Manual and/or FAA Approved Airplane Flight Manual) Paragraph 2.C.1., Kits/PartsYesKits/Parts Required Paragraph 2.C.2., Parts and Materials Supplied by the Operator YesOperator Supplied Parts/Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin NoSpecial Tooling Required ACTION In the Electrical/Electronics (E/E) compartment, do the following:
– Install two new relays in the aft right radio rack.
– Install a terminal block, new wires and in-line junctions between the E/E compartment aft right radio rack and the STA 110 relay panel.
– Do the Operational test of the static ports and pitot heaters and the Enhanced Air Data System test.
Accomplishment of this service bulletin changes the flight deck and/or operations of the airplane. Refer to Paragraph 1.K., Publications Affected, for affected publications.
EFFECTIVITY MD-90-30 Airplane(s). Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplane(s).
COMPLIANCE The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this service bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service bulletin mandatory.
Boeing recommends that the change given in this service bulletin be done within 27 months after the original issue date of this service bulletin.
INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are not available for the changes given in this service bulletin.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 02, 2017 MD90-30A031 6 of 37 BOEING SERVICE BULLETIN MD90-30A031
ALERTALERT
MANPOWER Elapsed HoursTotal Task HoursAirplanes
18.9036.80Group 1
MATERIAL INFORMATION Boeing Supplied Kits/Parts.
Operator Supplied Parts/Materials.
Refer to Paragraph 2.A., Material - Price and Availability.
Operators are encouraged to complete the survey provided in APPENDIX A of this service bulletin to help Boeing predict the quantity and timing of the Boeing Supplied Kits/Parts.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 02, 2017 MD90-30A031 7 of 37 BOEING SERVICE BULLETIN MD90-30A031
ALERTALERT
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 02, 2017 MD90-30A031 8 of 37 BOEING SERVICE BULLETIN MD90-30A031
ALERTALERT
BLANK PAGE
Commercial Airplanes MD90 Service Bulletin ALERT Number: MD90-30A031 Original Issue: June 02, 2017 ATA System: 3030 SUBJECT: ICE AND RAIN PROTECTION - Pitot and Static - Air Data Sensor Heat System Change
THIS DOCUMENT IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH 1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS DOCUMENT TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS DOCUMENT TO THE NEW OWNER.
1. PLANNING INFORMATION A. Effectivity
1. Airplanes This service bulletin is for the airplanes shown below.
The intent of this change was done on fuselage number 2224 prior to the Original Issue of this service bulletin in accordance with SP90300001 Drawing, Revision C.
DESCRIPTIONCONFIGURATIONGROUP MD-90-30 airplanes making changes to Air Data Sensor Heat System.-1 Airplane Models:
MD-90-30 GroupFuselage Number 12094 - 2099 12100 12115 12117 12120 12122 - 2123 12125 - 2126 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 02, 2017 MD90-30A031 9 of 37
GroupFuselage Number 12131 12136 12138 12140 - 2143 12146 - 2147 12149 - 2150 12154 12156 - 2157 12159 12161 12163 - 2165 12169 - 2171 12173 12175 12177 12179 12184 12186 12190 12193 - 2195 12197 - 2198 12200 12202 - 2203 12207 12210 - 2212 12217 12220 12222 12224 12228 12233 12236 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 02, 2017 MD90-30A031 10 of 37 BOEING SERVICE BULLETIN MD90-30A031
ALERTALERT
GroupFuselage Number 12240 12245 12248 12253 12258 - 2259 12261 14001 - 4002
2. Spares Affected None.
B. Concurrent Requirements None.
C. Reason This service bulletin gives instructions to change the Air Data Heat (ADH) System. The accomplishment of this service bulletin will turn on the ADH system when the left and right fuel switches are set to the ON position. Air data sensors directly affect flight computers and flight deck instrumentation. The air data sensors have heaters to prevent blockage from ice formation in the sensor or from ice formation on the static plates. Incorrect airspeed indications can be the direct result of pitot tubes icing. Unheated Air Data sensors, mainly the pitot and static sensors, in icing conditions may result in irregular airspeed or altitude indications. If this service bulletin is not done, then failure of the Captain or First Officer to activate the ADH System can result in unsafe flight conditions.
One operator reported that during takeoff, both the Captain's and First Officer's airspeed indications froze at 80 knots. The captain made the decision to continue the takeoff which resulted in an overboost of both engines. The flight was diverted to an alternate airport. A review of the weather at the departure airport indicated an Outside Air Temperature (OAT) of 25 degrees Fahrenheit and wind at approximately 20 knots in light snow. The airplane had been waiting in this weather condition for about two hours for de-icing before takeoff. A review of the flight data recorder from this event indicated the airspeed became irregular and could not be read during takeoff until the airplane reached 6000 feet Above Ground Level (AGL). The recorded data also indicated that the pitot tube was possibly blocked with ice.
Boeing Service Related Problem (SRP) MD90-SRP-30-0053 is related to this service bulletin.
Boeing Fleet Team Digest (FTD) MD-90 FTD 30-15001 is related to this service bulletin.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 02, 2017 MD90-30A031 11 of 37 BOEING SERVICE BULLETIN MD90-30A031
ALERTALERT
D. Description In the Electrical/Electronics (E/E) compartment, do the following:
– Install two new relays in the aft right radio rack.
– Install a terminal block, new wires and in-line junctions between the E/E compartment aft right radio rack and the STA 110 relay panel.
– Do the Operational test of the static ports and pitot heaters and the Enhanced Air Data System test.
Accomplishment of this service bulletin changes the flight deck and/or operations of the airplane. Refer to Paragraph 1.K., Publications Affected, for affected publications.
The work in this service bulletin is done in the maintenance zone(s) given below.
Affected Maintenance Zones ZoneModel 114MD-90-30 E. Compliance The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this service bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service bulletin mandatory.
Boeing recommends that the change given in this service bulletin be done within 27 months after the original issue date of this service bulletin.
F. Approval This service bulletin was examined by the Federal Aviation Administration (FAA). The changes specified in this service bulletin comply with the applicable regulations and are FAA approved, as well as European Aviation Safety Agency (EASA)/Joint Aviation Authorities (JAA) approved for all EASA/JAA approved airplanes listed in the service bulletin effectivity. This service bulletin and its approval were based on the airplane in its original Boeing delivery configuration or as modified by other approved Boeing changes.
If an airplane has a non-Boeing modification or repair that affects a component or system also affected by this service bulletin, the operator is responsible for obtaining appropriate regulatory agency approval before incorporating this service bulletin.
G. Manpower The table below shows an estimate of the task hours necessary to do this change for each airplane.
This estimate is for direct labor only, done by an experienced crew. Adjust the estimate with operator task hour data if necessary. The estimate does not include lost time. These are some examples of lost time:
• Time to adjust to the workplace
• Time to schedule the work
• Time to inspect the work Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: June 02, 2017 MD90-30A031 12 of 37 BOEING SERVICE BULLETIN MD90-30A031