Equipment List 7-2 Figure 7-1.  A typical 14 CFR part 23 weight and balance record. Notes: Unless otherwise indicated, true values (not net  change values) for the weight and arm are shown. Positive  arms are distances aft of the airplane datum; negative  arms are distances forward of the datum. Asterisks (*) in  the weight and arm column indicate complete assembly  installations. Some major components of the assembly are  listed on the lines immediately following. The sum of these  major components does not necessarily equal the complete  assembly installation. In the Item No column, each item is assigned a coded number.  The first two digits of the code represent the assignment  of an equipment item within the ATA Specification 100  breakdown (Chapter 11 for Placards, Chapter 21 for Air  Conditioning, Chapter 77 for Engine Indicating, etc.). These  assignments also correspond to the Maintenance Manual  chapter breakdown for the airplane. Items receive a unique  sequence number (01, 02, 03, etc.). After the sequence  number (and hyphen), a suffix letter is assigned to identify  The comprehensive equipment list provides the following  information in column form: In the Wt and Arm columns, you find the weight in pounds  and arm in inches of the equipment item. Note: Additional equipment must be installed in accordance  with the reference drawing, service bulletin, or a separate  FAA approval. Figure 7-2  is a comprehensive list of all Cessna equipment  that is available for the Model 182S airplane. It should  not be confused with the airplane-specific equipment list.  An airplane-s pecifi c list is provided with each individual  airplane at delivery and is typically found at the end of the  Pilot’s Operating Handbook. The following comprehensive  equipment list and the airplane-specific list have a similar  order of listing. In the Ref Drawing column, a drawing number is provided  that corresponds to the item. In the Equipment List Description column, each item is  assigned a descriptive name to help identify its function.  The Federal Aviation Administration (FAA) considers  the addition or removal of equipment included in the  Comprehensive Equipment List to be a minor alteration.  The weights and arms are included with the items in equipment list, and these minor alterations can be done and the  aircraft approved for return to service by an FAA-certificate mechanic or repairman. The only documentation required is an  entry in the aircraft maintenance records and the appropriate  change to the weight and balance record in the POH/AFM.  [Figure 7-1] an equipment item as required, standard, or optional. Suffix letters are as follows: –R = required item or equipment for FAA certificatio –S = standard equipment item –O = optional equipment item replacing required or standard item(s) –A = optional equipment item that is in addition to required or standard items Weight and Balance Record (Continuous history of changes in structure or equipment affecting weight and balance) Airplane Model Serial Number Page Number Date Item No. In Out Description of Article or Modification Weight Change Running Basic Empty Weight Added (+) Removed (−) Wt. (lb) Wt. (lb) Arm (in) Moment/ 1,000 Wt. (lb) Arm (in) Moment/ 1,000 Moment/ 1,000 As delivered  1,876  67.8  8-7-09  Alteration per F AA Form 337  Dated 8-7-09  7.38  .346  1,883.4 68.1  34-XX  Turn coordinator   –2.5  15.0  –.037  1,880.9 68.1  34-XX  Directional gyro   –3.12  13.5  –.042  1,877.8 68.1  22-XX  Autopilot system   13.0  32.7  .425  1,890.8 68.5 Cessna 182L 1 18259080