SERVICE LETTER 233
Cessna 170 · Maintenance Manual
Overview
This document is a service letter from Textron Aviation regarding the hydraulic pump replacement for Cessna 170 aircraft equipped with 2100A floats. It provides detailed instructions for compliance, including parts required, approximate shop hours, and warranty information. The service letter is intended for maintenance personnel and aircraft technicians who are responsible for the upkeep of Cessna 170 models. It outlines the necessary steps to replace the hydraulic pump, ensuring that the aircraft remains compliant with safety and operational standards.
- The document is a service letter for Cessna 170A and 170B models.
- It details the replacement of the hydraulic pump on 2100A floats.
- Approximate labor time for the replacement is 8 hours.
- The service kit includes part number 1011887, a new hydraulic pump.
- Weight and balance changes must be documented after the replacement.
Document
Source
Originally published by www.wipaire.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Maintenance Manual
- Year
- 2021
- Pages
- 4
- File size
- 733 KB
- Publisher
- www.wipaire.com
Common. One of the most common aircraft types we track.
Most owners only have the POH. Here's the essential set for the Cessna 170.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
Cessna 170 for sale now
Free — save the 170 to your watchlist and track it in one place.
More Cessna 170manuals & documents
- AIRWORTHINESS DIRECTIVEAirworthiness Directives
- AIRWORTHINESS DIRECTIVE AD/CESSNA 170/72 Cigar Lighter WiringService Bulletins
- SCHEDULE OF AIRWORTHINESS DIRECTIVESAirworthiness Directives
- AIRWORTHINESS DIRECTIVEService Bulletins
- SCHEDULE OF AIRWORTHINESS DIRECTIVESAirworthiness Directives
- TYPE CERTIFICATE DATA SHEET NO. A-799Type Certificate
- SCHEDULE OF AIRWORTHINESS DIRECTIVESAirworthiness Directives
- SCHEDULE OF AIRWORTHINESS DIRECTIVESService Bulletins
- Instructions for Continued Airworthiness McFarlane Aviation, Inc. PMA Door Hinges, Cessna 170 SeriesMaintenance Manual
- Technical Sheet: Cessna 170Specifications
- Completion and Disposition of FAA form 337, & Field ApprovalsChecklist
- Cessna 170 Airplane Flight ManualFlight Manual
If you fly the Cessna 170, you may also be researching these.
In this document
Compliance Method
The service letter outlines an optional compliance method for replacing the hydraulic pump on Cessna 170 aircraft. It specifies that installation should follow the work instructions provided in the service letter.
Approximate Shop Hours
The estimated labor time for completing the hydraulic pump replacement is approximately 8 labor hours, which should be considered when scheduling maintenance.
Items Provided in Service Kit
The service kit for the hydraulic pump replacement includes several items, such as part number 1011887, which is a new hydraulic pump, and other necessary components for the installation.
Weight and Balance Change
Replacing the hydraulic pump may result in a change to the aircraft's weight and balance, which should be documented accordingly.
Warranty Information
The service letter specifies that it does not include warranty coverage for labor and parts related to the hydraulic pump replacement.
Safety notes
- Ensure compliance with the installation instructions to maintain aircraft safety standards.
Full document text
WIPLINE FLOATS • SKIS • MODIFICATIONS • AIRCRAFT SALES AVIONICS • INTERIOR • MAINTENANCE • PAINT REFINISHING 1700 Henry Ave - Fleming Field (KSGS), South St. Paul, MN 55075 Phone: 651.451.1205 | Fax: 651.457.7858 www.wipaire.com SERVICE LETTER 233 Cessna 170 Hydraulic Pump Replacement on 2100A Floats Aircraft Makes/Model(s): Float Model(s): Compliance: Optional By: MAB Textron Aviation 170A & 170B 2100A Part Number: 1011890 Approved: SDW Date: 6/10/2021 Revision: A )$$DSSURYDOKDVEHHQREWDLQHGIRUWHFKQLFDOGDWDLQWKLVSXEOLFDWLRQWKDWDႇHFWV67&RU762GHVLJQFRPSOLDQFH LOG OF REVISIONS Revision Description Date A Initial release 6/10/2021 EFFECTIVITY: 7KLVVHUYLFHOHWWHUDSSOLHVWR7H[WURQ$YLDWLRQPRGHOV$DQG%ZLWK:LSOLQH$PSKLELDQ)ORDWVLQVWDOOHGSHU67& 6$&+ COMPLIANCE: 2SWLRQDOFRPSOLDQFH BACKGROUND: 7H[WURQ$YLDWLRQ &HVVQD $DQG%+\GUDXOLF3XPS$VVHPEO\$ KDVEHHQGLVFRQWLQXHG7KLVVHUYLFH OHWWHUSURYLGHVWKHRSWLRQWRUHSODFHLWZLWKSXPS COMPLIANCE METHOD: ,QVWDOOSURYLGHGSDUWVDVVKRZQLQWKH:RUN,QVWUXFWLRQVHFWLRQRIWKLVVHUYLFHOHWWHU APPROXIMATE SHOP HOURS: 7KHZRUNLQVWUXFWLRQIRUWKLVVHUYLFHOHWWHUZLOOWDNHDSSUR[LPDWHO\ODERUKRXUV WEIGHT AND BALANCE CHANGE: /%6)6 WARRANTY INFORMATION: 7KLVVHUYLFHOHWWHUGRHVQRWLQFOXGHZDUUDQW\IRUODERUDQGSDUWV TECHNICAL DATA: &RSLHVRIWKLVVHUYLFHOHWWHUDVVRFLDWHGVHUYLFHNLW LIDSSOLFDEOH ÀRDWVHUYLFHPDQXDODQGÀRDWSDUWVPDQXDODUHDYDLODEOHDW ZZZZLSDLUHFRP 5HYLVLRQ$ 3DJHRI 31 6(59,&(/(77(5 &HVVQD+\GUDXOLF3XPS5HSODFHPHQWRQ$)ORDWV ITEMS PROVIDED IN SERVICE KIT 1011890 ITEM QTY PART NUMBER DESCRIPTION 1 1 1011887 $66(0%/<+<'5$8/,&32:(53$&.9 2 $1$ %2/7 *5,381'5,//('67((/ 1$6 )3 :$6+(5,'7+.67((/ 4 2 $1$ %2/7*5,381'5,//('67((/ 2 1$6 )3 :$6+(5,'7+.67((/ DISCONTINUED 12 VDC HYDRAULIC PUMP 21A09000-279 NEW 12 VDC HYDRAULIC PUMP 1011887 5HYLVLRQ$ 3DJHRI 31 6(59,&(/(77(5 &HVVQD+\GUDXOLF3XPS5HSODFHPHQWRQ$)ORDWV 5HYLVLRQ$ 3DJHRI 31 6(59,&(/(77(5 &HVVQD+\GUDXOLF3XPS5HSODFHPHQWRQ$)ORDWV Work Instructions 'LVFRQQHFWDLUFUDIWEDWWHU\ 'LVFRQQHFWVLQJOHSLQ0ROH[FRQQHFWRUIRU*$ZLUH 'LVFRQQHFWSLQ&3&FRQQHFWRUIURPK\GUDXOLFSRZHUSDFNDVVHPEO\$ ,IDLUFUDIWKDVDK\GUDXOLFORZOHYHOZDUQLQJV\VWHPGLVFRQQHFWZLUHKDUQHVVIURPVHQVRULQUHVHUYRLU 'UDLQK\GUDXOLFÀXLGIURPK\GUDXOLFSRZHUSDFNUHVHUYRLU 'LVFRQQHFWDQGFDS$ K\GUDXOLFOLQHIURPUHVHUYRLUWRKDQGSXPS 'LVFRQQHFWDQGFDS$ K\GUDXOLFOLQHVIURPSXPSXSDQGGQSRUWVWRFURVV¿WWLQJV 8QEROWDQGUHPRYHK\GUDXOLFSRZHUSDFN$ IURPPRXQWLQJDVVHPEO\ ,QVWDOOQHZK\GUDXOLFSRZHUSDFNXVLQJVXSSOLHGKDUGZDUH 5HLQVWDOOK\GUDXOLFOLQHV$ RQWRSXPSPDQLIROGXSDQGGQSRUWV 5HLQVWDOOK\GUDXOLFOLQH$ WRSXPSUHVHUYRLU¿WWLQJ ,IDLUFUDIWKDVDK\GUDXOLFORZOHYHOZDUQLQJV\VWHPUHFRQQHFWZLUHKDUQHVVWRVHQVRULQQHZUHVHUYRLU 5HLQVWDOOSLQ&3&FRQQHFWRU6HHHOHFWULFDOVFKHPDWLF &XWVLQJOHSLQ0ROH[FRQQHFWRUIURP*$ZLUH,QVWDOO)1/FRQQHFWRURQWR*$ZLUH&RQQHFW*$ZLUHWR SRZHUZLUHRQK\GUDXOLFSRZHUSDFNDVVHPEO\6HHHOHFWULFDOVFKHPDWLF 5HFRQQHFWDLUFUDIWEDWWHU\VHUYLFHSXPSUHVHUYRLUZLWK0,/+K\GUDXOLFÀXLGDQGSHUIRUPDUHWUDFWLRQH[WHQVLRQWHVW WRPDNHVXUHV\VWHPLVIXQFWLRQLQJFRUUHFWO\:DWFKWKHV\VWHPIRUOHDNVDQGDGG0,/+K\GUDXOLFÀXLGDVQHHGHG Aircraft Closing & Return to Service 8SRQFRPSOHWLRQRILQVSHFWLRQHQWHULQIRUPDWLRQLQ$LUFUDIW/RJERRNIRUFRPSOHWLRQRI:LSDLUH6HUYLFH/HWWHU
What's in the Cessna 170 TCDS
A Type Certificate Data Sheet (TCDS) is the FAA's record of what an aircraft type was approved as. It is the source of truth for weights, seating, fuel and the rules the design was certified against. Expand any line to see what it means.
261 Cessna 170 parts for sale
See all →
Parts listed for sale by vetted eBay sellers — confirmed on eBay at checkout.